Commit Graph

184 Commits

Author SHA1 Message Date
Amaury Levé ce75c35569 dotnet-test: raise timeouts for chronic-timeout eval scenarios (#850)
Several dotnet-test eval scenarios repeatedly hit their wall-clock timeout
in the evaluation dashboard (skilled + plugin arms), producing empty output
and failing all assertions. Increase per-scenario timeouts for the ones that
timed out most often across recent runs:

- writing-mstest-tests: 'Write unit tests for a service class',
  'Write data-driven tests for a calculator',
  'Use string assertions for format validation' 180->360;
  'Use comparison assertions for boundary testing' 120->240
- coverage-analysis: 'Coverage plateau diagnosis',
  'Project-wide coverage analysis with existing Cobertura data' 300->480
- test-gap-analysis: 'Decline request to write new tests from scratch' 120->300;
  'Acknowledge well-tested code with few surviving mutations' 300->420
- run-tests: 'Filter xUnit v3 tests by trait on MTP',
  'Filter xUnit v3 tests by class pattern and trait using query filter language' 120->240

Per eng/skill-validator/src/docs/InvestigatingResults.md, timeouts are the
highest-priority failure mode; code-generation scenarios often need 360s.

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
2026-07-01 15:09:04 +00:00
Amaury Levé a677ec43d2 Consolidate dotnet-test-frameworks into test-analysis-extensions (#851)
* Consolidate dotnet-test-frameworks into test-analysis-extensions

Remove the orphaned dotnet-test-frameworks reference skill, whose content
was a duplicate subset of test-analysis-extensions/extensions/dotnet.md.
Nothing actually loaded it. Redirect the remaining references and drop its
eval tests.

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

* Make exp-test-maintainability Step 1 self-contained and fix activation

Address PR review: exp-test-maintainability (dotnet-experimental plugin)
must not point at test-analysis-extensions (dotnet-test plugin) — inline the
.NET framework markers instead. Also strengthen the description/When-to-Use
triggers so the 'each new case needs a whole new method / suggest a better
structure' scenario reliably activates the skill instead of routing to a
test-writing skill.

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

* Revert exp-test-maintainability description broadening; keep self-contained markers

The description broadening regressed activation (3/4 -> 0/4 across a
variance-dominated single eval run, CV up to 924%). Description is the
activation lever, so restore the original wording and keep only the
review-comment fix (inlined .NET framework markers in Step 1).

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

* Fix scenario 1 eval: use project fixture so the skill activates

Scenario 1 pasted a self-contained snippet inline and asked to 'suggest a
better structure', which the base model answers directly without loading the
skill -> NOT ACTIVATED with no headroom. Convert it to the project-fixture
pattern used by the activating scenarios (3 & 4): move the repetitive
InputValidatorTests into a Validation.Tests fixture and ask the model to
analyze the project. Mirror the change in eval.vally.yaml.

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

* Fix scenario 2 eval: use project fixture so the skill activates

Scenario 2 also pasted a self-contained snippet inline (well-maintained
Auth.Tests) and asked to 'review these tests', which the base model handles
without loading the skill. Convert to the project-fixture pattern used by the
activating scenarios; add fixtures/well-maintained/Auth.Tests. Mirror in
eval.vally.yaml. All four scenarios now reference a project on disk.

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

* Add reject_tools to exp-test-maintainability evals to create headroom

All four scenarios scored NOT ACTIVATED / no-headroom (#8 in
InvestigatingResults.md): baselines are already 4.0-5.0/5, so loading the
skill only adds token/tool overhead with no offsetting quality gain.

Match the convention of the sibling analysis skill test-anti-patterns:
reject bash/edit/create on every scenario. This skill is analysis-only
('do not modify any files'), so the constraint is a no-op for correct
behavior but levels the playing field between baseline and skilled runs —
scoring focuses on answer quality (weight 0.40+0.30) instead of tool-induced
overhead. Applied to both eval.yaml and eval.vally.yaml.

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

* Address review: make well-maintained fixture self-contained and deterministic

- Import System.Security.Authentication for AuthenticationException
- Replace wall-clock assertion (token.ExpiresAt > DateTime.UtcNow) with a
  deterministic one anchored on a fixed clock (FixedNow), and drive the
  injected FakeClock from that fixed time. This removes the flakiness and
  makes the FakeClock injection meaningful — a better exemplar for the
  'well-maintained' scenario.

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

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2026-07-01 16:53:02 +02:00
Petr Pokorny 325890d119 Bump dotnet-test to 0.2.0 (#852)
* Bump dotnet-test plugin to 0.2.0

Signals the VS Code subagent fan-out fix (#847) to existing installs.
Minor bump; no breaking changes.

* Sync .codex-plugin manifest to 0.2.0

Keeps plugins/dotnet-test/.codex-plugin/plugin.json in sync with the main
plugin.json, matching the convention other plugins follow (e.g. dotnet-ai).
Addresses PR review feedback.
2026-07-01 15:22:42 +02:00
Abhitej John 733cc264e3 fix: add .claude-plugin manifest for dotnet-msbuild binlog MCP server (#844)
Claude Code discovers MCP servers via .claude-plugin/plugin.json inside
each plugin directory. The existing .codex-plugin/ manifest only works
for Codex CLI. Add the Claude Code-specific manifest with inline
mcpServers config, and also declare mcpServers in the root marketplace
manifest entry for belt-and-suspenders coverage.

Fixes #840

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
2026-06-30 10:48:41 -07:00
Petr Pokorny 06dd46e5f1 Enable VS Code subagent fan-out for the dotnet-test code-testing agents (#847)
* Add VS Code subagent metadata to dotnet-test code-testing agents

Enable the code-testing-* Research-Plan-Implement pipeline to fan out as
subagents in VS Code while keeping the GitHub Copilot CLI working.

Frontmatter (VS Code "coordinator/worker" pattern; portable tool aliases that
map in both VS Code and the CLI):
- code-testing-generator: tools: [agent, read, search, edit, execute] + an
  agents: list (researcher, planner, implementer, builder, tester, fixer,
  linter); softened the three runSubagent({ agent, prompt }) blocks to
  tool-agnostic delegation prose.
- code-testing-implementer: tools: [agent, read, search, edit, execute] +
  agents: (builder, tester, fixer, linter).
- Leaf agents (researcher/planner/builder/tester/fixer/linter):
  tools: [read, search, edit, execute].

Why explicit tools (not ["*"]): VS Code has no all-tools wildcard for 	ools:
and a subagent's 	ools: overrides its inherited set, so ["*"] matched nothing
and stripped subagents of file tools (they ran without read/edit/search). The
CLI treats ["*"] as all-tools, so this was VS-Code-specific. The portable
aliases agent/read/search/edit/execute map to real tools in both environments;
agents: is ignored by the CLI.

README: document the VS Code chat.subagents.allowInvocationsFromSubagents
setting (off by default) needed for the nested implementer->builder/tester/
fixer/linter layer to fan out on large scopes; the CLI has no such gate.

Validated end to end: VS Code shows researcher->planner->implementer fanning out
with real file I/O (no "subagents lack file tools" warning); CLI fan-out intact
with skills still loading and tests passing. An all-tools baseline used only
tools within this enumerated set, confirming no CLI capability is restricted.

* Include skill tool in code-testing agent tool allowlists

Address PR review: the explicit `tools:` allowlists omitted the `skill`
tool, but every code-testing-* agent's prompt instructs calling skills
(e.g. `code-testing-extensions` for per-language guidance, `test-gap-analysis`,
`assertion-quality`). Because `tools:` is an override, omitting `skill` can
prevent the agents from loading those skills in environments that gate skill
invocation by the allowlist.

Add `skill` to all eight agents:
- orchestrators (generator, implementer): [agent, skill, read, search, edit, execute]
- workers (researcher/planner/builder/tester/fixer/linter): [skill, read, search, edit, execute]

Re-verified in the Copilot CLI: full fan-out (researcher -> planner ->
implementer/tester), the `code-testing-extensions` skill is invoked, and the
generated tests pass.
2026-06-30 19:42:39 +02:00
Wendy Breiding 4975793af0 Moving niche skills to dotnet-advanced (#807)
* Add csharp-development skill and update CODEOWNERS and README.md

- Introduced a new skill for C# development guidance.
- Updated CODEOWNERS to include reviewers for the new skill.
- Modified README.md to list the new csharp-development skill.
- Added evaluation scenarios for the csharp-development skill.

* Refactor C# evaluation scenarios to enhance production code review and validation guidance

* Refactor production code review scenarios to improve clarity and focus on async error handling

* Update CODEOWNERS to reflect current ownership and streamline reviewer assignments

* Remove csharp-development skill documentation and evaluation tests

* Remove csharp-development skill from README

* Fix formatting in Constants.g.cs by adding missing semicolon

* Revert Constants.g.cs to main

* Remove csharp-development skill from CODEOWNERS

* Potential fix for pull request finding

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* Update CODEOWNERS to include additional reviewers for dotnet-ai skills

* Move dotnet skills to dotnet-util to keep dotnet plugin focused and targeted.

* Add CODEOWNERS, SKILL.md, package-types.md, and publish-workflow.md for NuGet trusted publishing; implement eval.yaml for dotnet-pinvoke and dotnet-util skills

* Potential fix for pull request finding

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* Potential fix for pull request finding

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* Update README files to enhance plugin descriptions and remove outdated LSP section

* Rename repository title from 'dotnet' to 'dotnet-util' in README.md for clarity.

* Refine README.md to clarify included .NET skills and remove redundant descriptions

* Add 'dotnet-util' plugin for utility skills in .NET development

* Potential fix for pull request finding

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* Add 'dotnet-util' plugin for utility skills in .NET development

* Add dotnet-util to Codex marketplace manifest

* Align dotnet-util marketplace descriptions

* Refactor CODEOWNERS and update README for nuget-trusted-publishing; add evaluation scenarios and workflow template for trusted publishing

* Add P/Invoke diagnostics and type mapping references; implement NuGet trusted publishing setup

- Created diagnostics.md for common pitfalls and failure modes in P/Invoke.
- Added type-mapping.md for native-to-.NET type mappings.
- Introduced nuget-trusted-publishing skill for setting up OIDC-based NuGet publishing.
- Added package-types.md detailing structural requirements for various NuGet package types.
- Created publish-workflow.md as a template for GitHub Actions workflows for NuGet publishing.

* Add evaluation YAML files for csharp-scripts, dotnet-pinvoke, and nuget-trusted-publishing skills

* Potential fix for pull request finding

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* Complete nuget-trusted-publishing move: remove from dotnet, add to dotnet-specialized README

* Potential fix for pull request finding

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* Potential fix for pull request finding

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* Remove eval.vally.yaml and eval.yaml files for nuget-trusted-publishing skill

* Potential fix for pull request finding

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* Potential fix for pull request finding

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* Potential fix for pull request finding

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* Add NuGet trusted publishing skill and related references

- Introduced `nuget-trusted-publishing` skill for setting up OIDC-based trusted publishing on GitHub Actions.
- Added detailed documentation in SKILL.md covering prerequisites, process, safety rules, and troubleshooting.
- Created `package-types.md` to outline structural requirements for various NuGet package types.
- Developed `publish-workflow.md` as a template for GitHub Actions workflows for NuGet publishing.
- Removed obsolete `dotnet-specialized` plugin and updated `dotnet` plugin description.
- Added evaluation tests for `nuget-trusted-publishing` skill to ensure proper guidance for users.
- Implemented evaluation tests for `dotnet-pinvoke` and `csharp-scripts` skills to validate functionality.

* Update dotnet plugin description to include high-level .NET development skills

* Add NuGet trusted publishing and P/Invoke documentation

- Introduced type mapping reference for native-to-.NET types in dotnet-pinvoke.
- Added a comprehensive guide for setting up NuGet trusted publishing using OIDC in GitHub Actions.
- Created a reference document detailing structural requirements for various NuGet package types.
- Provided a template for GitHub Actions workflow for publishing NuGet packages with trusted publishing.
- Implemented evaluation scenarios for testing the dotnet-pinvoke and nuget-trusted-publishing skills, including prompts and assertions for expected outputs.

* Potential fix for pull request finding

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* Potential fix for pull request finding

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* Potential fix for pull request finding

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* Potential fix for pull request finding

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* Add CODEOWNERS entries for setup-local-sdk

* Potential fix for pull request finding

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* Potential fix for pull request finding

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* Update dotnet README to list setup-local-sdk skill

* Add setup-local-sdk to skills section in README

* Potential fix for pull request finding

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* Potential fix for pull request finding

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2026-06-29 22:25:44 +00:00
YuliiaKovalova 8a52700bce Add TFM-aware buildTransitive->build forwarding guidance to msbuild skills (#836)
* Add TFM-aware buildTransitive->build forwarding guidance to msbuild skills

buildTransitive/*.props should forward through the corresponding build/*.props (ownership chain buildTransitive -> build -> shared) rather than importing buildMultiTargeting/ directly. When build/ is packed per-TFM (build/<tfm>/), the forwarder must include the TFM segment and derive it from the file own folder, not $(TargetFramework) (NuGet nearest-match can serve a different asset folder), otherwise transitive consumers hit MSB4019.

Updates extension-points (new Forwarding chain section), msbuild-antipatterns AP-13, and the msbuild-code-review agent. Lesson learned from microsoft/testfx#9431.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Clarify ambiguous props/targets glob in forwarder review check

Address review feedback on dotnet/skills#836: spell out ".props/.targets forwarders" instead of the ambiguous `buildTransitive/*.props|targets`.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Tighten forwarding-chain guidance to reduce skill token overhead

Condense the new extension-points Forwarding chain section (+26 -> +11 lines) and the AP-13 note by dropping the redundant non-TFM example and self-evident derivation explanation, keeping the chain rule, MSB4019 cause, and the TFM derivation expression. Lower token footprint addresses the skill-validator weighted-score token penalty without losing substance.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Address review nits: AP range and forward-slash path

Update the additional anti-patterns range to AP-16 through AP-22 (the reference doc now includes AP-22), and use a forward-slash build/MyPackage.props in the forwarding-chain prose to match the build/<tfm>/ convention used in the section.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Condense AP-13 forwarding note to a cross-reference to reduce token overhead

The full TFM-forwarding guidance lives in extension-points; AP-13 only needs a concise pointer. Removes duplication and trims the msbuild-antipatterns skill footprint flagged by the skill-validator token penalty.

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* Potential fix for pull request finding

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* Address remaining review nits: targets forwarders, single-source wording, quoted MSBuildThisFileDirectory

---------

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2026-06-29 19:14:46 +02:00
Huo Yaoyuan 4560ea4d4d Update P/Invoke skill (#798) 2026-06-29 10:06:21 -07:00
Amaury Levé 691cd472a1 Fix writing-mstest-tests activation by deflecting sibling skills (#835)
* Add MSTest deflection to assertion-quality and test-anti-patterns skills

The writing-mstest-tests skill failed to activate in the plugin arm for
six MSTest-specific scenarios (fix swapped Assert.AreEqual, modernize
legacy patterns, type/string assertions, DynamicData with ValueTuples)
because sibling skills captured the routing. assertion-quality and
test-anti-patterns matched these prompts but lacked explicit deflection
to writing-mstest-tests. Add DO NOT USE entries pointing MSTest test
writing/fixing/modernizing to writing-mstest-tests.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Address review: restore general assertion-fix deflection, align test-anti-patterns

- assertion-quality: restore the general 'fixing or rewriting assertions'
  deflection (dropped in the prior edit) alongside the MSTest deflection, and
  fix punctuation to use comma-separated DO NOT USE items.
- test-anti-patterns: align the 'writing new tests' deflection to also point
  MSTest test-writing to writing-mstest-tests, matching the body guidance.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

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2026-06-26 12:11:27 +02:00
Amaury Levé 592a53008e skill-validator: restore 15K aggregate cap as the real Copilot CLI skill-menu budget (#803)
* skill-validator: restore 15K aggregate cap, document it as the real Copilot CLI skill-menu budget

The per-plugin aggregate description cap had been raised 15,000 -> 20,000
-> 22,000 under the belief that 15K was 'a local repo policy, NOT a
documented Copilot constraint'. That belief was wrong: the GitHub Copilot
CLI renders the model-facing <available_skills> menu under a hard 15,000-
char budget (the agent SDK's SKILL_CHAR_BUDGET, default 15e3, confirmed in
CLI 1.0.36 and 1.0.61). Skills are listed alphabetically and emitted with
their full <description> only until the budget is exhausted; every skill
past the cut-off collapses to a bare name with no description and can no
longer be reliably model-activated. Raising the validator cap merely
masked this silent menu truncation — e.g. dotnet-test's run-tests and
test-* skills stopped activating in plugin eval runs because they fell
into the name-only overflow.

Changes:
- SkillProfiler.MaxAggregateDescriptionLength: 22,000 -> 15,000, with the
  comment rewritten to document the real Copilot CLI budget (and correct
  the prior 'not a documented constraint' claim).
- CheckCommand aggregate now excludes skills marked
  'disable-model-invocation: true' — the CLI drops those from the menu, so
  they do not consume the budget. This makes the cap satisfiable by hiding
  reference / agent-orchestrated primitives rather than only by trimming.
- InvestigatingResults.md: document plugin-arm-only non-activation caused
  by skill-menu budget overflow, and how to fix it.

Note: dotnet-test currently exceeds 15K and must be slimmed below it
(via disable-model-invocation on reference/primitive skills plus
description trims) before this cap can go green repo-wide.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* skill-validator: use source-generated regex for disable-model-invocation check

Address review: replace Regex.IsMatch(pattern-string) with a
[GeneratedRegex] partial method (AOT-friendly, no per-call cache lookup),
matching FrontmatterParser's style. Runs once per skill during checks.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* skill-validator: parse disable-model-invocation via YAML to avoid block-scalar false positives

The regex-based check matched any line in the frontmatter, so a block-scalar description that merely mentioned 'disable-model-invocation: true' on its own line was wrongly treated as disabling model invocation. Parse the frontmatter with the existing YAML deserializer (which correctly handles block scalars) by adding a DisableModelInvocation field to SkillFrontmatter, and drop the regex entirely.

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2026-06-25 14:59:05 +02:00
Amaury Levé cbb6121e76 dotnet-test: trim skill descriptions to fit skill-menu under 15K (#816)
The plugin's rendered skill-menu was 15,428 chars, over the 15,000 limit. Compressed the verbose per-framework parentheticals in the longest polyglot descriptions and dropped a few redundant clauses, preserving all routing keywords. Aggregate name+description length now ~14.5K.

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2026-06-25 10:27:19 +02:00
Gerald Versluis 72c0d2c7b7 Add setup-local-sdk skill for global.json paths feature (#508)
* Rebase setup-local-sdk skill

Replay PR #508 onto current main and address the remaining setup-local-sdk review feedback. The install examples now use fail-fast temporary downloads, the team scripts preserve existing global.json content, and eval assertions cover the critical paths/version/workload behavior.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Address setup-local-sdk review comments

Add the missing skill license metadata and fix the PowerShell .gitignore regex examples so they correctly detect an existing .dotnet/ entry.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Stabilize setup-local-sdk evals

Reduce overfit-prone assertions, make incompatible host handling explicit, configure base SDK resolution before slow workload installs, and tighten exact-version/team-script validation.

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* Address setup-local-sdk follow-up review

Include the shared dotnet skill reviewer team in CODEOWNERS, make .gitignore appends newline-safe, and tighten the incompatible-host eval to reward stopping before local install commands.

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* Tighten exact local SDK eval

Measure project-level SDK resolution and exact roll-forward behavior using global.json artifact assertions so the scenario distinguishes PATH-based local installs from SDK paths setup.

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* Address install script review feedback

Use the documented lowercase dotnet-install quality value and call out both bash and PowerShell official install script URLs.

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* Increase team script eval timeout

Give the team install script scenario the same realistic long-running timeout as other scenarios that install preview SDK bits.

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* Add Windows local SDK check

Document the PowerShell equivalent for detecting an existing local SDK and give exact SDK installs enough time to complete in eval.

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* Stabilize team script eval

Focus the team script scenario on script/config generation, create reproducible setup guidance before long downloads, and avoid brittle transcript assertions.

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* Make mktemp usage portable

Use BSD/macOS-compatible mktemp templates in setup-local-sdk bash snippets and generated team install script.

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2026-06-24 10:05:32 -07:00
YuliiaKovalova 67e2a47e87 Trim dotnet-msbuild skill-menu under 15K char limit (#809)
The rendered skill-menu for the dotnet-msbuild plugin was 16,679 characters, exceeding the 15,000 limit. Trim two categories of content from the 18 skill descriptions that do not help agents decide when to invoke a skill:

- Remove INVOKES: clauses (which MCP tools / fallback shell commands a skill runs internally) — implementation mechanics, not routing signal.
- Remove the boilerplate 'Only activate in MSBuild/.NET build context.' repeated verbatim in all 18 skills — redundant, since every description is already MSBuild-specific and each DO NOT USE FOR still excludes non-MSBuild build systems.

USE FOR triggers and DO NOT USE FOR cross-references are preserved. Aggregate skill description size drops from 14,551 to 12,536 chars (rendered menu 16,679 -> 14,664).

Co-authored-by: Yuliia Kovalova <ykovalova@users.noreply.github.com>
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
2026-06-24 08:50:46 +02:00
Amaury Levé 35ace775b3 Add dotnet-test-migration plugin and move migration skills there (#808)
Move the .NET test framework/platform migration skills (migrate-mstest-v1v2-to-v3, migrate-mstest-v3-to-v4, migrate-vstest-to-mtp, migrate-xunit-to-mstest, migrate-xunit-to-xunit-v3) and the test-migration orchestrator agent out of dotnet-test into a new dedicated dotnet-test-migration plugin, along with their evals. Update all marketplace manifests, READMEs, CODEOWNERS, and .vally.yaml accordingly.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
2026-06-23 17:19:32 +02:00
Amaury Levé 29bfae5f5b run-tests: fix evals (query-filter regex, sibling skills, command observability) (#800)
* run-tests: fix evals (query-filter regex, sibling skills, command observability)

Investigated run-tests eval failures by running the validator locally.

- SKILL.md Step 3: document xUnit v3 --filter-query so the agent stops
  answering that complex xUnit v3 filters 'cannot be combined'.
- eval.yaml: fix a broken assertion regex. The query-filter pattern is a
  single-quoted YAML scalar using '\\s'/'\\[', which (unlike a double-quoted
  scalar) is NOT unescaped, so the regex searched for a literal '\s' and
  could never match. Corrected to single backslashes.
- eval.yaml: add additional_required_skills (filter-syntax / platform-detection)
  to the filter and detection scenarios, so the isolated arm loads the sibling
  reference skills that run-tests explicitly defers to.
- eval.yaml: ask the agent to show the exact command in execute-style prompts.
  output_matches only sees the final assistant message; 'run my tests' prompts
  make the agent execute and summarize ('tests passed'), so the recommended
  command never appears. The assertions still catch wrong commands.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* run-tests: rewrite description for reliable plugin-arm activation

The run-tests skill activated reliably in the isolated eval arm but
unreliably in the plugin arm (all dotnet-test sibling descriptions
loaded), so every scenario's pluginImprovementScore went negative and
dragged min(isolated, plugin) below zero.

Lead the description with natural-language intent triggers that mirror
how the eval prompts phrase requests (run all tests, run a subset via
filters, produce TRX reports, collect crash/hang dumps, run a single
TFM) instead of opening with platform-detection mechanism, and add
explicit DO NOT USE redirects to code-testing-agent / mtp-hot-reload.
Stays under the 1024-char description cap.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* dotnet-test: fix run-tests plugin-arm activation via skill-menu budget

Root cause (verified against the Copilot CLI SDK skill renderer): the
model-facing skill menu has a 15000-char budget. Skills are listed
alphabetically and emitted with full descriptions only until the budget
is exhausted; the rest collapse to bare names with no description and
effectively cannot be model-activated. With 27 dotnet-test skills,
run-tests (alphabetical position ~20) fell into the name-only overflow,
so it never activated in the plugin eval arm even though it activated
reliably in isolation. This is a real user-facing discoverability bug,
not just an eval artifact.

Fix: hide reference/primitive skills that are never meant to be
model-invoked from the menu via 'disable-model-invocation: true', which
the SDK filters out of the budget entirely:
  - filter-syntax, platform-detection, dotnet-test-frameworks,
    code-testing-extensions, test-analysis-extensions — already
    user-invocable:false reference data ('DO NOT USE directly').
  - find-untested-sources, find-untested-sources-polyglot — researcher
    primitives invoked by-name from the code-testing-researcher agent
    (which has a manual fallback); no standalone evals.
These remain invocable by explicit name (agents/users), only auto-
suggestion is suppressed.

This frees enough budget that run-tests (plus migrate-xunit-to-xunit-v3
and mtp-hot-reload) now receive full descriptions; no previously-visible
skill regresses. Also trimmed the run-tests description so its menu block
fits with margin while keeping all activation triggers.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

---------

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
2026-06-23 11:03:57 +02:00
Amaury Levé e3f0becd4c Fix test-gap-analysis skill activation in plugin eval runs (#801)
* Fix test-gap-analysis skill activation in plugin eval runs

In plugin-mode eval runs (all dotnet-test skills loaded), test-gap-analysis lost activation: 'Acknowledge well-tested code' was stolen by assertion-quality and 'logic/null-check gaps' loaded no skill at all. Front-load the concrete 'would my tests catch a bug if the code changed' trigger phrasing the prompts use, and add a DO NOT USE -> test-gap-analysis redirect in assertion-quality for mutation-style reasoning. Both descriptions stay within the 1024-char cap; aggregate unchanged.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Restore Jest/TS activation signal for assertion-quality polyglot scenario

The earlier trim of assertion-quality's description dropped the Jest/Vitest and toBeTruthy() signals, breaking plugin-mode activation for the 'Polyglot: Jest/TypeScript' scenario (agent answered directly, loading no skill). Restore those polyglot signals, and make the scenario prompt realistic — the prior prompt enumerated the full check catalog and Jest matcher list inline, acting as an answer key that let the agent self-serve without loading the skill. Verified locally: the scenario now activates assertion-quality in plugin mode across runs; all other assertion-quality scenarios still activate; description stays within the 1024-char cap.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

---------

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
2026-06-22 15:15:50 +00:00
Amaury Levé 03f06321a4 Cover MSTESTxxxx analyzer diagnostics in writing-mstest-tests skill (#794)
* Cover MSTESTxxxx analyzer diagnostics in writing-mstest-tests skill

Add a 'Fix MSTest analyzer diagnostics' workflow step mapping the common MSTESTxxxx rules to their idiomatic fixes, plus MSTestAnalysisMode guidance, instead of creating one skill per rule.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Fix MD012 markdown lint (trailing blank line)

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Address review feedback: reword analyzer availability and fix table grammar

- Don't tie MSTest.Analyzers availability to TestFramework 3.7; note metapackage/SDK/explicit reference.
- Fix grammatically broken fix text for the MSTEST0002-0014 layout row.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Clarify the MSTESTxxxx table is non-exhaustive; defer to full reference

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

---------

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
2026-06-22 10:38:31 +02:00
Amaury Levé 0c98ce6bd9 Direct strategy must still run the Step 7 pre-completion gate (#793)
* Direct strategy must still run the Step 7 pre-completion gate

The Direct strategy correctly skips the research/plan/implement sub-agents
for small single-file tasks, but the wording let agents also skip the
Step 7 pre-completion gate (test-gap-analysis + assertion-quality +
scenario coverage) — treating a single-file task that enumerates specific
behaviors as 'trivially small'.

This is the dominant failure mode observed on behavior-enumerating tasks:
the agent writes one test file directly and finishes with no
assertion-strength or scenario-coverage check, producing weak assertions
(mutation survivors) and missing required edge/negative cases.

Clarify in both the generator Step 2 strategy table and the
code-testing-agent SKILL.md that Direct trades away only the sub-agents,
never the gate, and that a request naming a specific symbol or enumerating
scenarios is not 'trivially small' and must run the gate.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Address review: align Direct gate trigger with Step 7 threshold; clarify gate in SKILL.md

- Step 2 Direct cell no longer introduces a separate 'names a specific
  symbol' gate trigger that contradicted Step 7. It now defers to Step 7's
  own threshold (>=5 tests, or any enumerated behaviors/scenarios).
- SKILL.md now names what/where the gate is: the generator's Step 7
  (test-gap-analysis + assertion-quality).

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

---------

Co-authored-by: Amaury Levé <evangelink@users.noreply.github.com>
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
2026-06-22 10:38:14 +02:00
Amaury Levé 5d717dbdd1 Add prompt-scenario coverage check to code-testing-generator gate (#789)
* Add prompt-scenario coverage check to code-testing-generator gate

The pre-completion gate already verifies assertion strength (pseudo-mutation
and assertion-depth checks), but two recurring failure modes still slip
through when the prompt enumerates specific behaviors:

- Testing an *adjacent* function/helper instead of the exact feature named
  in the objective, leaving the requested behavior uncovered.
- Covering only a single representative case when the scenario wording
  implies multiple variations or pins a condition to a specific position
  or structure.

Add a third gate item that maps each enumerated scenario to a dedicated
test, requires targeting the exact named function (preferring the canonical
existing test file), and requires honoring range/positional qualifiers
literally.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Address review: genericize example, fix gate-count consistency

- Remove benchmark-specific symbol names from the target-the-named-function
  bullet to avoid overfitting; phrase it generically.
- Fix the gate intro that said 'The two skills below' now that there are
  three numbered items (the third is a prompt self-review, not a skill).
- Update Step 8 and Rule 11 so re-running the gate includes the new
  prompt-scenario coverage check, not just test-gap-analysis + assertion-quality.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

---------

Co-authored-by: Amaury Levé <evangelink@users.noreply.github.com>
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
2026-06-18 16:20:46 +02:00
Amaury Levé 14d727fee6 Fix test-anti-patterns skill activation for 5 evals (#786)
* Fix test-anti-patterns skill activation for 5 evals

Sibling skills with overlapping descriptions were stealing activation
from test-anti-patterns in plugin eval runs (coverage-analysis,
assertion-quality, test-smell-detection). Reword descriptions so
test-anti-patterns owns the umbrella 'audit my tests for anti-patterns'
severity-ranked report, and add DO NOT USE redirects in the
metric-focused siblings. Kept all descriptions within the 1024-char cap.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Use toBeTruthy() call form in assertion-quality example

Addresses review feedback: the Jest matcher example read like a property
without parentheses. Description stays within the 1024-char cap (1023).

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Fix eval validation error and improve activation triggers

- assertion-quality eval.yaml/eval.vally.yaml: replace hyphenated
  'assertion-quality' (the target skill name) with spaced 'assertion
  quality' in two scenario prompts, fixing the 'prompt mentions target
  name' validation error that biased baseline runs.
- test-anti-patterns description: add 'what's wrong with my tests' /
  'are these tests any good' / 'flaky tests' trigger phrasing to improve
  organic activation for the flakiness, well-written and polyglot
  scenarios (which intermittently failed to activate in plugin runs).
  Stays within the 1024-char description cap (1007).

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Use Jest matcher call form in assertion-quality polyglot prompt

Addresses review feedback: write toBeDefined()/toBeTruthy()/not.toBeNull()/
toBe()/toThrow() in call form in the prompt so they read as matcher calls,
consistent with the skill description examples. Regex assertions and rubric
left untouched (they match agent output, which may use either form).

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Sharpen test-anti-patterns description for flakiness/polyglot activation

The flakiness and Python-pytest scenarios failed to activate even in
isolated runs (where it's the only candidate skill), because their prompts
enumerate the methodology and the description's keywords were too generic.
Front-load the concrete trigger keywords those prompts use: Thread.Sleep,
DateTime.Now, time.sleep, order-dependent, reflection coupling, and
Python/pytest. Stays within the 1024-char cap.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Make mixed/flakiness eval prompts realistic to fix plugin activation

The mixed-severity and flakiness scenarios consistently failed to activate
test-anti-patterns in plugin runs (detected=[] — the agent loaded no skill
at all and answered directly). Both prompts enumerated the full anti-pattern
catalog inline, acting as an answer key that made the agent self-sufficient.
Replace the embedded checklists with realistic user asks while keeping the
'for .NET test anti-patterns' trigger, file references, severity-ranked
output format, and read-only constraint. Rubric and output_matches
assertions are unchanged — they validate the produced report.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

---------

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
2026-06-18 16:13:40 +02:00
Amaury Levé 0c2b9710ee Fix activation for OutputType=Exe Directory.Build.props scenario (#785)
The 'Set OutputType=Exe only for test projects in Directory.Build.props' eval scenario was failing skill activation: the model answered from its own knowledge and proposed the IsTestProject condition the skill explicitly warns against.

Strengthen the migrate-vstest-to-mtp SKILL.md description so the skill router matches this scenario: add the literal trigger phrase and surface the MSBuildProjectName (correct) and IsTestProject (anti-pattern) keywords in the USE FOR clause. Trimmed lower-value text to stay within the 1024-char description limit (1011).

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
2026-06-17 15:58:52 +02:00
Amaury Levé f389af86c7 code-testing-generator: mandatory pre-completion self-review gate (#768)
* code-testing-generator: mandatory pre-completion self-review gate

Replaces the prose `Verify tests are implementation-specific'' bullet
in Step 7 of the code-testing-generator agent with a mandatory
pre-completion self-review gate that invokes two existing plugin
skills:

1. `test-gap-analysis'' (pseudo-mutation check) against the source
   files tested and the produced test files
2. `assertion-quality'' (trivial/tautological assertion check)
   against the produced test files

Both skills already ship in plugins/dotnet-test; this PR only wires
them into the generator's workflow as a mandatory gate before
declaring a run complete.

The two skills' `When to Use'' sections are extended to list
`called by code-testing-generator as a pre-completion self-review
step'' as a recognised use case so the model does not refuse the
invocation. The skill descriptions are unchanged (frontmatter is
already at the 1024-char limit).

Rule 11 of the generator agent is updated to list the gate alongside
final build, final test, and coverage-gap review as mandatory for ALL
strategies including Direct.

A matching rubric item is added to the ContosoUniversity scenario in
the code-testing-agent eval (yaml and vally) so the LLM judge can
verify the gate was actually invoked on the trajectory.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Apply suggestions from code review

Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>

---------

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>
2026-06-17 10:14:26 +00:00
Amaury Levé 11fd40e04c Add worked example files for C++, PowerShell, Ruby, Rust, Kotlin (#775)
* Add missing language worked examples

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Address review: fix runnable example bugs (PS type/scope, Rust impl Trait arg, Catch2 macros)

- powershell: accept [pscustomobject] in Get-InvoiceTotal; assert \
- rust: use concrete fn pointer type instead of impl Trait as generic arg
- cpp: use REQUIRE_THROWS_WITH for message-substring assertions

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

---------

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
2026-06-17 11:44:16 +02:00
Amaury Levé 2bdec9b741 Expand C++ testing extension: coverage instrumentation, frameworks, CMake/ctest setup (#777)
* Expand C++ testing extension guidance

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Address review: group find -o predicates, include AppleClang, note libgtest-dev caveat

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

---------

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
2026-06-17 11:43:37 +02:00
Amaury Levé fc1e54f1a4 Harden Python testing guidance: reuse repo test runner/layout, handle heavy deps, never ship failing tests (#776)
* Harden Python testing guidance: reuse repo runner/layout, handle heavy deps, never ship failing tests

Python is the weakest benchmark language (grade ~0.31): ~60% of generated tests
fail and coverage stays ~2%. Trajectory analysis showed heterogeneous causes —
custom runners not discovered (Django), custom layouts (ansible test/units),
native-import failures (PyTorch), and over-reach that ships failing tests
(Flask/FastAPI), which zeroes the grade via the pass-all gate.

- Discover and reuse the repo's own test runner/layout before writing tests.
- Add Django runner / DJANGO_SETTINGS_MODULE / subdir-runner guidance.
- Verify heavy/native modules import before testing; otherwise scope down or skip.
- Add a green-suite-or-remove finalization rule (delete tests that can't pass).
- Start with high-certainty pure-function tests to bank coverage.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Address review: reword nonexistent Skip section reference

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Address review: clarify env-wrapper usage for module vs script/-c, import probes, and green-suite check

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

---------

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
2026-06-17 09:39:10 +00:00
YuliiaKovalova 5aa08ce41b Resolve Microsoft.AITools.BinlogMcp from nuget.org (#774)
The Microsoft.AITools.BinlogMcp package is now published on nuget.org as
stable 1.0.0, so the binlog MCP server no longer needs the dnceng AzDO
dotnet-tools feed or the --prerelease flag.

Drop --prerelease and --add-source <azdo> from the binlog server args in
both plugin.json and the .codex-plugin/.mcp.json mirror.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
2026-06-16 19:31:42 +02:00
Amaury Levé 754011b5ee Add workspace-integrity guardrail to code-testing agents (#773)
The code-testing-generator/implementer agents could treat an unusual or
scaffolded workspace (e.g. a gutted repo with an injected synthetic module)
as corruption and "repair" it with git checkout/restore/reset/clean or rm,
restoring deleted tracked files and testing the wrong code.

- Replace generator Rule 5 ("Clean git first - stash changes") with an
  explicit "Treat the workspace as delivered" rule, and add a "Never mutate
  version control" rule. Output must be purely additive test files.
- Add a no-revert/no-clean invariant to the implementer's edit boundaries.
- Add a 'workspace integrity' eval to the code-testing-agent suite
  (eval.yaml + eval.vally.yaml). The fixture looks gutted: a metricsd project
  whose real core/io modules are committed at HEAD but deleted from the
  working tree, leaving only a synthetic 'synthstr' decoy. A git restore would
  resurrect the deleted sentinel files; graders fail if they reappear and
  require passing pytest tests for the module as delivered.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
2026-06-16 13:49:34 +00:00
Amaury Levé a98fb44e52 code-testing-agent: pin down behavior in generated tests (#767)
Adds a new `Write Tests That Pin Down Behavior'' section to
`unit-test-generation.prompt.md'' covering five universal
test-craft principles:

1. Mutation thinking - each assertion would fail under a plausible bug
2. Property intersections - test combinations, not only coordinate axes
3. Behavior radius - assert on at least one secondary observable
4. Fixture realism - never set the parameter under test to a degenerate value
5. Quick self-review before declaring a test method done

Mirrors the same depth requirements in
`code-testing-implementer.agent.md'' Step 4 as a cross-language
invariant block alongside the existing `Edit boundaries'' rules.

Extends the existing `code-testing-agent'' eval rubrics (yaml and
vally) with one or two depth-oriented bullets per scenario:

* ContosoUniversity: minimal IsNotNull-only assertions + secondary
  observable check on controller actions
* python-flask-tasks: minimal `is not None''-only assertions + at
  least one combined-property TaskService validation test
* typescript-vitest-cart: minimal `toBeDefined''/`toBeTruthy''-only
  assertions + at least one intersection test (discount + tax +
  shipping together)

Rationale and prior-art references in PR description.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
2026-06-16 11:14:34 +00:00
Daniel Plaisted 8a437b1d4f Add anti-pattern for forking a project instance via <MSBuild> with path-neutral global properties (#770)
Adds msbuild-antipatterns AP-22 (in references/additional-antipatterns.md): using
the <MSBuild> task to build/publish a project with an extra global property that
does not change the output path forks a distinct instance sharing the same
OutputPath/IntermediateOutputPath as the instance the graph already builds,
causing duplicate builds and parallel-write races on PDBs, *.sourcelink, and
project.assets.json. Covers both shapes:
  (a) a project re-invoking itself (publish-on-build), and
  (b) project A invoking Build/Publish on another project B it consumes
      (e.g. a test/layout project publishing a tool) — the more common trigger.
GOOD fixes: (a) static _IsPublishing + DependsOnTargets with a cycle guard;
(b) let the producer publish in its own build and have the consumer sequence it
with a non-output ProjectReference instead of re-publishing it. Also updates the
SKILL.md pointer (AP-16 through AP-22) and the quick-reference checklist.

Extends check-bin-obj-clash with the matching cause (self or cross-project
<MSBuild> Build/Publish with a path-neutral global property), binlog-based
detection via the evaluations/global-properties/double_writes tools, the two
fixes, and an _IsPublishing row in the global-properties table.

Adds eval coverage: a publish-on-build smell in the msbuild-antipatterns review
fixture (LibA.csproj) plus a matching rubric line in eval.yaml and eval.vally.yaml.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
2026-06-16 10:53:14 +02:00
Amaury Levé 76b4c73a39 Add find-untested-sources-polyglot skill (tree-sitter, 9 languages) (#735)
* Add find-untested-sources-polyglot skill (tree-sitter, 9 languages)

Sibling of the C# find-untested-sources skill that uses tree-sitter
(via tree-sitter-language-pack) to extract declarations + imports across
Python, TS/JS, Go, Java, Rust, C#, and Ruby with no build step.

Output schema mirrors the C# skill's so prompts can consume either tool.

Pairing strategies per language:
- Import resolution (Python module path, TS/JS relative ./../index.*,
  Go pkg/<name>.go, Java FQCN, Rust use::, Ruby require).
- Identifier overlap (every >=4-char token in the test source is
  cross-referenced with the declared-name index).

Smoke-tested on:
- python-flask-tasks fixture: 8 source / 0 test, 8 untested.
- typescript-vitest-cart fixture: 8 source / 0 test, 8 untested
  (node_modules pruned).
- AITestAgent C# repo: 3138 source / 761 test, 1419 tested,
  1719 untested, 15 orphan.
- gh-skills Go repo: 14 source / 7 test, 8 tested, 6 untested,
  0 orphan.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Polyglot: union structure+symbols for declarations (fixes Go types, Python methods)

tree-sitter-language-pack's ProcessResult exposes two complementary views:
- structure: top-level items (classes, functions, structs, traits)
- symbols: flat declared-name list

Neither alone is complete:
- Go: structure has methods/functions but NOT 'type' declarations; symbols
  has the types. Without union, a test that references a struct name finds
  no matching source and the source is incorrectly marked untested.
- Python: structure stops at top-level, symbols also lists nested methods.
- Rust: structure has structs and impls; symbols has fn names inside impls.

Fix: union both lists, then drop kind='module'/'namespace' (these are
packaging items that would cause false positives, e.g. Java's tree-sitter
output emits the package name 'com' as a Module).

Verified across all 9 supported languages with synthetic source+test+orphan
fixtures (python, javascript, typescript, tsx, go, java, rust, csharp,
ruby): each fixture now reports tested=1, untested=1, orphan=0.

Real-repo regression check (AITestAgent C#): tested 1419 -> 1429,
untested 1719 -> 1709 (10 sources now correctly paired via types
previously missing from the declared-name index). Orphan count unchanged
at 15 (no false-positive pairings introduced).

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Address review feedback on find-untested-sources-polyglot

Code fixes (find_untested_sources.py):
- Java test-file detection: drop the `name.startswith("test")` clause so
  data files like `testdata.java` are no longer misclassified as tests.
  Keep the documented `*Test.java` / `*Tests.java` rule and the path
  segment heuristic.
- C# test-file detection: tokenize the (PascalCase-preserving) stem and
  treat the file as a test only when the final word is `Test` or
  `Tests`. This correctly classifies `UserServiceTests.cs` while no
  longer misclassifying `Contest.cs`, `Latest.cs`, `Manifest.cs`.
- Identifier-overlap pairing: iterate the test's referenced identifiers
  and do O(1) lookups in `by_decl` instead of scanning every declaration
  in the index. Pairing is now O(#test_identifiers) per test instead of
  O(#decls × #tests) across the run, which matters on large repos.
- JS/TS relative-import normalization: collapse `<seg>/../` segments in
  a fixed-point loop instead of a single regex pass so chained imports
  like `../../foo` and `a/b/../../c` resolve fully.

Doc fix (SKILL.md):
- Clarify that `symbols` is unioned with `structure` rather than being
  used only as a fallback when `structure` is empty, matching the actual
  parse_file implementation.
- Tighten description to stay within the per-skill (1,024 chars) and
  plugin aggregate (20,000 chars) limits enforced by skill-validator.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Allow tree-sitter.github.io in known-domains for find-untested-sources-polyglot

The polyglot skill's SKILL.md links to https://tree-sitter.github.io/ for
the tree-sitter project; add the domain to eng/known-domains.txt so the
skill-validator reference scanner stops failing with EXTERNAL-DOMAIN.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Address PR #735 review feedback (round 2)

- parse_file: log a stderr WARN when tree-sitter parsing throws instead of
  silently returning a 0-declaration FileInfo, so users can see when results
  are degraded by parser failures.
- Python relative imports: _python_module_to_path now respects PEP 328 leading
  dots, resolving 'from .utils import x' against the test file's package
  rather than treating it as an absolute 'utils.py' at repo root. Returns an
  empty candidate set when no test context is available or when the imported
  name isn't captured ('from . import x'), to avoid false-positive pairings.
- Go import resolution: _build_indexes now produces a by_filename index, and
  _resolve_test_imports looks up '<pkg>.go' in O(1) per import instead of
  scanning every source path for each import target.
- tested_sources: emit sorted by path for deterministic JSON output across
  runs (matches the existing sort on untested_sources / orphan_tests).
- SKILL.md: JS/TS test-detection row now lists the 'test' path segment to
  match the implementation.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

---------

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
2026-06-16 07:24:07 +02:00
Amaury Levé d0924d4f17 Add find-untested-sources skill (C# parse-only test pairing) (#733)
* find-untested-sources: C# static test-pairing prototype

Parse-only Roslyn analysis that maps C# source files to the test files
referencing their declared types and lists production sources with no
referring test. No Compilation, no MetadataReferences, no binding.

- File discovery prunes bin/obj/node_modules/.git and generated *.g.cs.
- Test classification by .csproj suffix or test-SDK reference.
- Source index records (ShortName, Namespace, FilePath) per parsed file.
- Test scan walks IdentifierTokens, disambiguates strictly against the
  test file's using directives + enclosing namespace.
- Suggests a test-file path by mirroring the source under the test
  project that already <ProjectReference>s the source's project.

Runs in ~9s on a ~3,900 .cs-file repo (AITestAgent + msbench fixtures).

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Address review feedback on find-untested-sources

Code fixes (Find-UntestedSources.cs):
- ProjectFor: sort .csproj matches and wrap enumeration in try/catch so
  selection is deterministic when a directory contains multiple project
  files.
- GetNamespaceFor: walk all enclosing namespace declarations and join from
  outermost to innermost so nested namespace blocks
  (namespace A { namespace B { ... } }) return "A.B" rather than just "B".
- Test scan: stop unconditionally skipping global-namespace declarations.
  Global types are visible without a using directive, so accept them as
  visible to any test file. Previously, types without a namespace were
  never attributed to any test and always reported as untested.
- BuildProductionToTestProjectMap: sort the recursive .csproj enumeration
  and wrap in try/catch so the "first write wins" rule selects the same
  test project across runs/machines regardless of filesystem ordering.
- IsSkippedFile: switch suffix comparisons to OrdinalIgnoreCase and
  collapse the five if statements into a single loop over an array.

Skill metadata (SKILL.md):
- Tighten the description so the skill stays under the 1,024-character
  per-skill limit and the dotnet-test plugin stays under the 20,000-char
  aggregate limit enforced by skill-validator.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

---------

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
2026-06-16 07:23:46 +02:00
Amaury Levé d9c1e7a801 code-testing-agent: mention find-untested-sources for C# discovery (#734)
* code-testing-agent: mention find-untested-sources for C# discovery

Adds a conditional pointer (gated on 'when available') to the
find-untested-sources skill in two places:

- SKILL.md Step 3 (Research Phase): high-level note for C# / .NET
  multi-file scopes — prefer the helper over manual find/grep/glob walks.

- code-testing-researcher.agent.md Section 7 (Discover Preexisting
  Tests): directive instruction telling the researcher to invoke the
  helper before manually pairing source <-> test files, and to use its
  source_to_tests / untested output to fill the research document.

Both callouts are phrased as 'when available', so installations
without the find-untested-sources skill continue to work via manual
discovery. Adds no behavior for non-C# repos.

Context: in a 5x136-instance internal experiment on the msbench .NET
test bench, adding equivalent pointers to the routed code-testing-agent
yielded a 15.67% input-token reduction at neutral pass rate — the
model trusted the documented pairing heuristics and skipped its own
discovery walk. The helper itself was not invoked in those runs (the
Copilot CLI router did not auto-load the sibling skill), so the
measured win comes from the doc text causing the model to short-circuit
its manual exploration, not from the helper executing.

Depends on dotnet/skills#733 (which adds the find-untested-sources
skill itself).

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* code-testing-agent eval: grade find-untested-sources usage on C# scenario

PR #734 adds a doc pointer steering the researcher toward the
`find-untested-sources` skill on .NET / C# multi-file tasks. The
existing ContosoUniversity scenario is the natural fit: it's the only
C# multi-file scenario in this eval, and the new pointer is .NET-
scoped.

Add one rubric item to that scenario (in both eval.vally.yaml and the
legacy eval.yaml) asking the grader to verify the researcher actually
leveraged the helper — either by citing its `source_to_tests` /
`untested` JSON output in `.testagent/research.md`, or by executing
`scripts/Find-UntestedSources.cs` — instead of falling back to manual
`find` / `grep` / `glob` walks. Gated on `when available in the
workspace` to match the SKILL.md wording, so installs without
find-untested-sources are not penalized.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

---------

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
2026-06-15 09:33:54 +02:00
Amaury Levé 8854249222 migrate-xunit-to-mstest: forbid CancellationToken.None replacement explicitly (#758)
* migrate-xunit-to-mstest: forbid CancellationToken.None replacement explicitly

The TestContext.Current.CancellationToken guidance already forbids replacing
it with a fresh CancellationTokenSource, but real-world agent migrations have
been observed substituting CancellationToken.None instead, which silently
drops the test host's cancellation linkage. Call CancellationToken.None out
explicitly so both common shortcuts are covered.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Address review: mention property injection for MSTest < 3.6

Per Copilot review on PR #758: the section above notes that projects pinned to MSTest < 3.6 must use property injection. Reword the CancellationToken callout to cover both constructor and property injection so the guidance stays correct in that supported scenario.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

---------

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
2026-06-12 16:08:53 +02:00
YuliiaKovalova 74c58505e5 Improve dotnet-template-engine plugin: accuracy, dedup, and two new skills (#745)
* Improve dotnet-template-engine plugin: accuracy, dedup, and two new skills

Fix inaccurate reserved-shortName guidance, consolidate validation rules into
a single skill, expand discovery mappings, add explicit CPM/version steps, and
introduce template-comparison and template-smart-defaults skills.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Fix .codex-plugin manifest indentation; add evals for new skills

Make .codex-plugin/plugin.json byte-consistent with plugin.json (2-space
indent on the agents line). Add eval.yaml + eval.vally.yaml capability
evals for the new template-comparison and template-smart-defaults skills.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Address PR review: source reserved list from dotnet new --help, note workload/package availability, tighten version-refresh

- Clarify the reserved shortName set is the current dotnet new subcommands
  (authoritative source: dotnet new --help); create is verified as a real
  subcommand (alias behind dotnet new <template>).
- template-discovery: note that some mapped short names (maui, winui3, aspire,
  func, orleans) need workloads/template packages, with fallback to
  dotnet new list/search.
- template-instantiation: keep template versions by default; if refreshing,
  use dotnet list package --outdated + user confirmation and constrain to
  same major/minor rather than always latest stable.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Address 2nd review round: enforce eval negatives, split combined assertion, reframe reserved list

- smart-defaults evals: enforce --no-https absence (auth scenario), absence of
  minimal-API flag (controllers scenario), and no newer --framework TFM when
  net8.0 is explicitly required, using output_not_contains/output_not_matches.
- comparison eval: split the combined (auth|aot|docker|controllers) check into
  four separate output_matches assertions so partial comparisons fail.
- template-validation/authoring: reframe the reserved shortName list as
  non-exhaustive examples and source the authoritative set from dotnet new --help;
  drop the specific create-alias assertion in favor of parsing-ambiguity wording.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Make template-comparison evals robust to CI SDK currency

Switch the Blazor comparison scenario from blazorserver (absent in the CI
SDK) to blazor (Blazor Web App) vs blazorwasm, both reliably present in
.NET 8+, and instruct the agent to inspect each via --help. Update the
SKILL.md example reference for currency.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Add CLI-failure resilience guidance to discovery/comparison skills

The isolated eval runs failed because the agent ran 'dotnet new <t> --help',
hit the template engine's global-mutex/persistence error (common when the
command runs concurrently in a sandbox), and then returned no answer at all.

Instruct both skills to run 'dotnet new' calls sequentially, retry once on a
transient mutex/persistence error, and fall back to the intent/parameter
mapping so a concrete answer is always produced instead of empty output.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Address PR review: accurate flags + robust negative-assertion prompts

- template-smart-defaults SKILL.md: drop the non-existent --publish-aot
  flag. Clarify --aot is a dotnet new flag only on templates that expose it
  (console/worker/grpc, not webapi) and that publish-time AOT is the MSBuild
  PublishAot=true property, not a dotnet new flag.
- template-discovery SKILL.md: replace the hardcoded --enable-docker mapping
  (not a real flag on common templates) with generic 'confirm with --help'.
- smart-defaults evals: tighten the negative-assertion prompts to output only
  the command line and not mention unused flags, so a negated explanation
  can't trip output_not_contains/output_not_matches. Switch the AOT scenario
  from webapi to worker (which actually supports --aot).

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Address PR review round 3: scope negative checks, de-emphasize stale lists

- smart-defaults evals: anchor the negative assertions to the 'dotnet new'
  command line (same-line regex) instead of whole-output substring/regex, so a
  flag mentioned only in prose can't fail the test.
- template-validation / template-authoring: mark the dotnet new subcommand
  examples as illustrative/version-dependent and tell readers not to hardcode
  them; the live 'dotnet new --help' output is canonical.
- template-comparison: fix the example table's AOT row — webapi/webapp do not
  expose a --aot template flag; native AOT is publish-time via PublishAot.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

---------

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
2026-06-12 15:15:56 +02:00
Amaury Levé 0a387fcdfe code-testing-implementer: add mandatory harness-discovery check (#757)
* code-testing-implementer: add mandatory harness-discovery check

Generic CI/benchmark verifiers run the framework's default discovery from the repo root. Tests that pass via a scoped command (e.g. 'dotnet test MyProject.Tests.csproj', 'bundle exec rspec subgem/spec', 'Invoke-Pester -Path ./tools') but are invisible to the harness count as 0 generated tests.

Repeatedly observed in msbench cta-nightly runs:

- new C# test project never 'dotnet sln add'ed (ocelot)

- Pester tests placed under custom directories invisible to default Invoke-Pester (homebrew, ruby/ruby)

- RSpec specs placed in a sub-gem's spec/ dir invisible from repo root (fastlane)

Changes:

- code-testing-implementer: capture baseline test count in Step 2, new Step 7 'Verify Harness Discovery (MANDATORY)' with concrete failure examples, HARNESS_DISCOVERY line in report template, reminder after Step 3 to revisit registration if Step 4 creates a new project.

- code-testing-researcher: instruct to record BOTH scoped test command and harness-equivalent discovery command in .testagent/research.md.

- dotnet.md: strengthen 'Registering a new test project' heading to MANDATORY when dotnet new was used; add 'Harness Discovery Check' section with 'dotnet test <solution> --list-tests' from repo root.

- powershell.md: add 'Harness Discovery Check' section with default-config Invoke-Pester from repo root.

- ruby.md: add gem-monorepo trap guidance (fastlane, ruby/ruby) in Test Placement Contract; add 'Harness Discovery Check' section with 'bundle exec rspec --dry-run' from repo root.

* Address review feedback on harness-discovery check

- dotnet.md: replace stale `Step 8 cleanup` reference with the actual Step 3 (`Register Test Project with Build System`).
- dotnet.md: demote `Harness Discovery Check` to `###` so it nests under the parent `## .csproj / .sln Handling` section alongside `### Registering...`.
- dotnet.md: replace `\s\{4\}` (non-POSIX) in the grep regex with 4 literal spaces so the count works under BRE.
- ruby.md: group the rake/rails fallback with `{ ...; } | wc -l` so the pipe applies to both branches of `||`.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

---------

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
2026-06-12 12:39:29 +00:00
Amaury Levé 9be44ad6e5 migrate-xunit-to-mstest: add learnings from dotnet/sdk migration (#756)
* migrate-xunit-to-mstest: add learnings from dotnet/sdk migration

Refines the skill based on a real migration of 5 test projects in dotnet/sdk:

- MSTest.Sdk implicit global using: do not add `<Using Include='Microsoft.VisualStudio.TestTools.UnitTesting' />` or per-file `using` in MSTest.Sdk projects (it's already in scope). Note Option A (`MSTest` metapackage) still needs the per-file using.
- `Assert.IsExactInstanceOfType<T>` (MSTest 4.1+) is the proper single-call equivalent of xUnit's exact-type `Assert.IsType<T>`; previous guidance silently degraded it to assignable semantics (closes #755).
- `Assert.AreSequenceEqual` (MSTest 4.3+) is the modern element-wise equivalent of xUnit's `Assert.Equal` on `IEnumerable<T>`, avoiding the `CollectionAssert` + `.ToList()` dance and the MSTEST0065 trap on plain `AreEqual`.
- Clarify `AwesomeAssertions` ships in the `FluentAssertions` namespace, so it's a no-source-change swap.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* SKILL.md: split IsType/IsAssignableFrom row to avoid implying drop-in equivalence

Address dotnet/sdk#54727 review comment: the Step 6 summary table conflated xUnit's exact-type Assert.IsType<T> and assignable Assert.IsAssignableFrom<T> into a single row, which implies both map interchangeably even though their semantics differ. Split into three rows -- IsType<T> -> IsExactInstanceOfType<T>, IsNotType<T> -> IsNotExactInstanceOfType<T>, IsAssignableFrom<T> -> IsInstanceOfType<T> -- and explicitly call out the silent-weakening trap.

The cheatsheet already maps these correctly; this aligns the SKILL.md summary with the cheatsheet so the at-a-glance table doesn't suggest a wrong mapping.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* SKILL.md: resolve Step 3/Step 4 conflict on the MSTest using for Option B

Address review feedback on dotnet/skills#756: Step 3 said to skip the
per-file 'using Microsoft.VisualStudio.TestTools.UnitTesting;' on
Option B (MSTest.Sdk provides it as an implicit global using), but
Step 4 unconditionally instructed replacing xUnit usings with that
MSTest using -- so an agent following Step 4 literally would re-add
the redundant using on Option B projects.

Also drop the dangling 'Step 4 rewriter' phrasing in Step 3 (there is
no rewriter in Step 4, just a list of mechanical rewrites the agent
applies).

Step 4 now explicitly says to skip the MSTest using on Option B and
only remove the 'using Xunit;' lines, matching Step 2's note and
Step 3's branch instructions.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

---------

Co-authored-by: Evangelink <amaury@microsoft.com>
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
2026-06-12 07:44:23 +02:00
Abhitej John c85a2d8d9f Fix dotnet-msbuild Codex plugin install by externalizing mcpServers (#740)
* Fix dotnet-msbuild Codex plugin install by externalizing mcpServers

Move the inline mcpServers configuration to a separate .mcp.json file
inside .codex-plugin/, and update .codex-plugin/plugin.json to reference
it via a relative path string. This matches the Codex plugin spec which
requires mcpServers to be a path reference to a .mcp.json file rather
than an embedded object.

The root plugin.json retains the inline mcpServers format for the
skill-validator. Both validator methods (FindPluginMcpServers and
ExternalDependencyChecker.CheckPlugin) are updated to also handle the
Codex string path format for forward compatibility.

Fixes #738

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Address review: validate mcpServers path and log parse errors

- Reject rooted paths and paths with '..' segments to prevent directory
  traversal when resolving mcpServers string references.
- Log parse errors in ResolveMcpFile to stderr (consistent with
  plugin.json parse error handling) instead of silently swallowing.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

---------

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
2026-06-09 17:07:14 -07:00
Abhitej John 2ab3501158 Add .codex-plugin/plugin.json manifests for Codex CLI plugin install (#726)
The Codex CLI requires .codex-plugin/plugin.json as the plugin manifest
entry point. Without it, 'codex plugin add' fails with 'missing plugin.json'
even though the marketplace listing works.

This adds .codex-plugin/plugin.json to all 14 plugin directories, with paths
relative to the plugin root per the Codex docs. Also updates the agents
marketplace to use dotnet-aspnetcore (per #711 rename) and adds missing
dotnet-blazor and dotnet11 entries.

Fixes #578
Fixes #724

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
2026-06-09 09:29:42 -07:00
Copilot 2d163bb600 Rename ASP.NET Core plugin from dotnet-aspnet to dotnet-aspnetcore (#711)
* Initial plan

* Rename dotnet-aspnet plugin to dotnet-aspnetcore

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
2026-06-08 09:20:31 -07:00
Joey Robichaud 998ae28063 Update lsp.config to invoke dnx from the plugin directory (#607)
Due to the behavior of dotnet SDK resolution when running in repos which use a global.json, we are not gaurenteed that the choosen SDK will be new enough to support the dotnet dnx command which we were using to install and run the roslyn-language-server. Instead, we will ship our own global.json and configure the current working directory to be the plugin directory.
2026-06-05 14:25:46 -07:00
Amaury Levé 803b91f167 Add grade-tests skill for per-test PR-comment quality grading (#727)
* Add grade-tests skill for per-test quality grading

Adds a new polyglot skill that grades a provided list of test methods on a
letter scale (A-F) with a score band and 1-line notes, suitable for posting
in a PR comment table. Complements existing audit skills (assertion-quality,
test-anti-patterns, test-smell-detection) which produce suite-wide reports.

The skill:
- Takes an explicit list of tests (refuses to grade a whole workspace silently)
- Uses a 3-dimension rubric (Assertion strength, Structure & focus, Anti-pattern hygiene)
- Combines via 0.45/0.30/0.25 weighting with safety caps
- Starts at A and only deducts for observable issues
- Does not flag idiomatic patterns (table-driven sub-tests, bare assert, etc.)

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Address review feedback

- OrderProcessorTests.cs: fix 4 invocations that mixed named arg
  customerId: with subsequent positional args -- invalid C# syntax
  (Copilot review on PR #727)
- README.md: update 'five test-analysis skills' to 'six' in three
  places now that grade-tests is added to the polyglot list, and
  clarify that only the original 5 load from test-analysis-extensions
  while grade-tests has an inline rubric

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* eval: drop 'grade-tests skill' wording from scenario prompts

The skill-validator's evaluate pre-flight check ValidateEvalPrompts
rejects any prompt that names the target skill, because mentioning the
skill biases baseline (skill-not-loaded) runs and inflates measured
lift. The two scenarios that asked the agent to 'use the grade-tests
skill' now just ask it to grade test methods individually -- the agent
is still expected to pick the right skill organically.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Fix rubric consistency per review feedback

- README: drop incorrect 'inline rubric instead' claim (grade-tests also
  loads test-analysis-extensions for language-specific guidance)
- Assertion sub-grade: literal always-true assertions are now F (was D),
  matching the eval expectation that 'assert True' produces overall F
- Anti-pattern catalog: split always-true literals (now -> F) from
  self-referential assertions (still -> D) — they were conflated
- Combination rule: overall grade is now capped at the worst sub-grade
  (was capped at D), so an F in any one dimension yields overall F

---------

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
2026-06-05 15:42:36 +00:00
Amaury Levé 812565f8d1 Add polyglot evals for code-testing-agent (Python Flask + TypeScript Vitest) (#709)
* Add polyglot evals for code-testing-agent (Python Flask + TypeScript Vitest)

Adds two non-.NET evaluation scenarios to the dotnet-test/code-testing-agent
eval to measure how well the agent generates idiomatic tests in Python and
TypeScript — the languages exercised by the msbench top5-* benchmarks.

New fixtures (no pre-existing tests, so passing pytest/vitest proves the agent
actually generated them):
- fixtures/python-flask-tasks/ — small Flask app with TaskService (injected
  clock), TaskRepository Protocol + InMemoryTaskRepository, and a /tasks
  blueprint with HTTP 201/200/400/404/409 surfaces. Validated locally with
  `python -m pip install -e ".[test]" && python -m pytest`.
- fixtures/typescript-vitest-cart/ — small shopping-cart library with an
  injectable DiscountPolicy seam (No/Percentage policies) and a Cart class
  with non-trivial merge / clamping semantics. Validated locally with
  `npm ci && npx vitest run`. package-lock.json committed so `npm ci` is
  reproducible in CI.

New scenarios (added to both eval.yaml and eval.vally.yaml):
- "Generate pytest tests for the Flask tasks API (Python polyglot)" — asserts
  that `python3 -m pip install -e '.[test]' && python3 -m pytest` exits 0
  and that at least one `tests/**/test_*.py` file was produced. Rubric
  rewards using Flask's `test_client()`, mocking `TaskRepository` for
  service-level tests, asserting HTTP status + JSON body, and covering the
  empty-title / >200-char / not-found / already-done error paths.
- "Generate Vitest tests for the shopping-cart library (TypeScript polyglot)"
  — asserts that `npm ci && npx vitest run` exits 0 and that at least one
  `tests/**/*.test.ts` file was produced. Rubric rewards mocking
  `DiscountPolicy` via `vi.fn()`, covering Cart merge semantics,
  `updateQuantity` zero-removes, `totals()` discount-clamping, and the
  `PercentageDiscountPolicy` constructor boundary.

Companion to #708 (polyglot examples + sub-agent generification); these
scenarios exercise the per-language guidance that PR adds.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Address review feedback for #709

- routes.py: guard `create_task` against non-dict JSON payloads (e.g. list)
  by returning 400 instead of letting `payload.get(...)` raise AttributeError
  and surface as a 500. This keeps the API behavior stable and makes it easier
  for generated tests to assert 400 on invalid input shapes.
- tsconfig.json: drop `vitest/globals` from `compilerOptions.types`. The
  fixture's vitest.config.ts sets `globals: false`, so allowing TypeScript
  to assume globals (describe/it/expect) only enables tests that compile but
  fail at runtime. Removing it keeps the fixture aligned with the non-global
  Vitest API the eval is exercising.

Both fixtures re-smoke-tested locally: vitest 1/1, pytest 2/2 (including a
new test confirming the non-dict body returns 400).

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Fix skill activation for polyglot scenarios in PR #709

Both polyglot scenarios (pytest + Flask, Vitest + TS) scored 5.0/5
quality but reported `⚠️ NOT ACTIVATED` because the SDK's skill router
did not load `code-testing-agent` into the agent's context:
`activated: false, detectedSkills: []` in skillActivationIsolated /
skillActivationPlugin. The .NET ContosoUniversity scenario activates
fine because its prompt has stronger `project-wide, multi-file ... high
coverage` framing and SKILL.md already covers .NET keywords.

Fixes per `eng/skill-validator/src/docs/InvestigatingResults.md` section
"Skill not activated":

- SKILL.md description: add framework-specific keywords (pytest,
  Flask/Django, Vitest, Jest, Mocha, JUnit, Node libraries, API,
  package, project-wide, multi-file) so the router has explicit hooks
  for polyglot prompts. Trimmed verbose `DO NOT USE FOR` clauses to
  stay under the 1,024-char skill spec limit (now 1,019 chars).
- eval.yaml + eval.vally.yaml: rewrite the two polyglot prompts to
  mirror the .NET scenario's framing — add `project-wide, multi-file
  test generation task across the ... layers` and `achieve high
  coverage`, soften the library-prescriptive bullets (Mock(spec=...),
  vi.fn()) into capability-level requirements (`mocked or stubbed`,
  `mock or hand-written stub`). Rubric items unchanged — they remain
  flexible enough to grade either mock style.

Validated locally: `dotnet run --project eng/skill-validator/src --
check --plugin ./plugins/dotnet-test` => ✅ All checks passed
(23 skill(s), 11 agent(s), 1 plugin(s)).

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Address PR #709 review + sharpen polyglot skill activation

**Activation fix for polyglot scenarios (Python + TypeScript)**

The previous attempt (e8e6feeb2) added pytest/Vitest framework names
to a long capability list, but both polyglot scenarios still reported
activated: false in skillActivationIsolated/skillActivationPlugin
across two consecutive /evaluate runs.

Rewrote the SKILL.md frontmatter description so trigger vocabulary
moves into the "Use when asked to ..." intent phrase and mirrors
the EXACT phrasing the polyglot prompts use (the .NET scenario
already activates because it says "scaffold a new test project",
which is in the description):

- Action triggers: "generate pytest tests", "generate Vitest tests"
  alongside "generate tests" / "write unit tests".
- Scaffolding triggers: "scaffold a new test project / test suite"
  (matches "scaffold a comprehensive pytest suite" and "scaffold
  a comprehensive Vitest suite").
- Surface nouns matching the polyglot fixtures: "web app",
  "REST API", "blueprint", "services, repositories, routes,
  and modules".
- Up front: list what the skill scaffolds across all languages
  (".NET test projects, pytest test suites, Vitest/Jest test
  suites, Go test files, JUnit test suites").

Trimmed the "DO NOT USE FOR" clause to keep the folded description
at 992 chars (under the 1,024 agentskills.io spec limit).

**Review comment fixes**

- fixtures/typescript-vitest-cart/tsconfig.json: drop
  types: ["node"] — fixture has no @types/node so tsc
  would fail with "Cannot find type definition file for 'node'".
- fixtures/typescript-vitest-cart/src/pricing.ts: rewrite the
  DiscountPolicy.computeDiscountCents @returns docstring.
  Was "Must not exceed the subtotal" (contradicted by
  Cart.totals() which clamps both negative and over-subtotal
  values). Now clearly states policies should target
  [0, subtotalCents] but Cart.totals() clamps out-of-range
  values back into the range, so contract and implementation match.
- fixtures/python-flask-tasks/src/tasks_api/models.py: the
  Task.created_at default now uses datetime.now(timezone.utc)
  via default_factory, matching TaskService's timezone-aware
  _now callable. Avoids mixing naive datetime.utcnow() with
  aware datetimes when Task is instantiated directly (e.g., in
  generated tests).
- fixtures/python-flask-tasks/src/tasks_api/routes.py: add an
  explicit isinstance(title, str) guard in create_task
  before delegating to TaskService.create. Previously a JSON
  title value that was a number/null/object would fall through
  to title.strip() and crash with AttributeError -> 500.
- fixtures/python-flask-tasks/src/tasks_api/service.py:
  defense-in-depth — TaskService.create now raises ValueError
  on non-string titles (instead of crashing) so non-Flask callers
  (and unit tests that exercise the service directly with bad
  inputs) get a clean validation error.

Validated locally:

- dotnet run --project eng/skill-validator/src -- check --plugin
  ./plugins/dotnet-test -> All checks passed (23 skill(s),
  11 agent(s), 1 plugin(s)).
- Python fixture: python -m compileall -q src clean.
- TS fixture: npm ci && npx tsc --noEmit clean.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Simplify polyglot prompts to encourage skill activation

The Python pytest and TypeScript Vitest scenarios were marked NOT
ACTIVATED in evaluation runs even after rewriting the SKILL.md
description with polyglot trigger vocabulary. Investigation of
results.json showed the agent went straight to view/create without
ever invoking the `skill` tool.

Root cause: the polyglot prompts contained long bullet lists
pre-specifying exact test cases (Cart.add merge semantics, updateQuantity
zero-removes, PercentageDiscountPolicy boundary tests, TaskService
validation errors, etc.). This gave the model a complete plan and removed
any incentive to load a planning skill.

Compare with the .NET ContosoUniversity scenario (which does activate
the skill): a short open-ended prompt — "write comprehensive unit tests
across the controllers, services, and the data layer. Achieve high code
coverage." plus a real tool-config requirement (coverlet.collector for
Cobertura XML).

Mirror that style in both polyglot prompts:
- Drop the prescriptive bullet lists; keep a short framing intro and a
  single open-ended ask.
- Add a coverage tooling requirement (pytest-cov XML for Python,
  @vitest/coverage-v8 lcov for TypeScript) to give the skill real
  scaffolding value.
- Rubric and assertions unchanged — they still grade the actual quality
  of the generated suite.

Mirrors guidance in eng/skill-validator/src/docs/InvestigatingResults.md
section 5 ("Check the scenario itself has sufficient information that
the agent can reason that it needs the skill") and avoids the
"illegitimate fixes" called out there.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Elaborate polyglot prompts and enforce coverage in assertions

The previous prompt rewrite got the TypeScript Vitest scenario
activating in isolated mode (2/3 runs) but the Python scenario still
NEVER activated. Inspecting the session events showed the agent went
straight to view+create on all 3 Python runs without invoking the
`skill` tool.

Theory: the Python prompt is too abstract (just "service layer, the
repository, and the Flask routes") compared to the .NET prompt which
enumerates Students/Courses/Departments/Instructors controllers. Make
the polyglot prompts feel as substantial as the .NET one by:

- Naming concrete symbols (TaskService with injected clock,
  InMemoryTaskRepository, /tasks, /tasks/<id>, /tasks/<id>/complete
  for Python; Cart.add/remove/updateQuantity/totals plus the two
  policy classes for TS) — mirrors the .NET prompt's named
  controllers list.
- Pointing at the exact mocking + injection strategy ("with the
  repository mocked and the clock injected", "with DiscountPolicy
  mocked").
- Pinning the coverage report to an explicit path (coverage.xml for
  Python, coverage/lcov.info for TS).

Also enforce the coverage tooling requirement at assertion time so
the prompt's "and the project should be configured so... coverage"
is a real deliverable — mirrors the .NET scenario's
`coverage.cobertura.xml` file_exists check:

- Python: added file_exists for fixtures/python-flask-tasks/coverage.xml
  (pytest with --cov=tasks_api --cov-report=xml in addopts writes
  coverage.xml from the directory pytest runs in).
- TS: added a `npx vitest run --coverage` run step plus file_exists
  for fixtures/typescript-vitest-cart/coverage/lcov.info.

Both changes are legitimate per
eng/skill-validator/src/docs/InvestigatingResults.md "improving the
skill vs gaming the eval" — they make the deliverable richer rather
than steering toward the skill or relaxing the rubric.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Clarify SKILL.md routing and mirror coverage assertions in eval.vally.yaml

Per rubber-duck review of the activation strategy:

1. SKILL.md description was ambiguous about coverage — the previous
   wording said "DO NOT USE FOR coverage/CRAP analysis" but the
   polyglot prompts heavily mention coverage tooling. In plugin mode
   that could confuse the router into deferring to coverage-analysis
   or crap-score even when the user wants new tests written. Clarify:
   - In-scope: "configures coverage tooling (coverlet, pytest-cov,
     @vitest/coverage-v8) as part of test generation"
   - Out-of-scope: "analyzing existing coverage reports" (not just
     "coverage")
   Description re-tightened to 1003 chars (under the 1024 limit).

2. eval.vally.yaml previously asserted only that test files exist; the
   eval.yaml mirror added coverage XML / lcov.info file_exists
   assertions in the prior commit. Mirror those into the vally graders
   so both eval schemas enforce the same coverage deliverable:
   - Python: assert fixtures/python-flask-tasks/coverage.xml exists
   - TS: run npx vitest run --coverage --reporter=basic then assert
     fixtures/typescript-vitest-cart/coverage/lcov.info exists

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Harden polyglot fixtures so baseline cannot perfectly ace them

Both polyglot scenarios (Python Flask, TypeScript Vitest) activated the
code-testing-agent skill in isolated mode but not in plugin mode. Root
cause: the baseline (no skill loaded) was scoring 5/5, leaving the skill
no headroom to demonstrate value, so plugin-mode runs went straight to
view+write without invoking any skill.

Per InvestigatingResults.md section 8, the correct fix is to add genuine
complexity that benefits from a planning workflow rather than relaxing
rubrics or gaming activation. This commit grows both fixtures into
realistic, multi-seam libraries that genuinely reward layered test
planning.

Python (fixtures/python-flask-tasks/) additions:

- models.py: TaskPriority enum, Tag value-object with normalization /
  validation, due_at on Task, is_overdue(now) helper.
- queries.py (new): TaskQuery / TaskPage / apply_query separating
  filter / sort / pagination from the service. Sort by created_at,
  due_at, priority, or title with ascending / descending order; filter
  by status, tag, search substring, and overdue.
- repository.py: TaskRepository protocol gains delete(); added
  normalize_tags() helper that the service uses for tag dedup.
- repository_sqlite.py (new): SqliteTaskRepository — a second backend
  implementing the same Protocol using stdlib sqlite3 (no extra deps),
  with persisted tags via a task_tags table and ON DELETE CASCADE.
- service.py: configurable max_title_length, timezone-aware due_at
  validation, priority / due_at / tag mutations, reopen() and delete()
  state transitions, add_tags / remove_tag with normalization.
- routes.py: new endpoints — DELETE /tasks/<id>, POST /tasks/<id>/reopen,
  POST /tasks/<id>/tags, DELETE /tasks/<id>/tags/<name>. GET /tasks now
  parses status / tag / q / overdue / sort / order / limit / offset and
  returns a paged response with total / has_more.
- app.py: env / config-driven backend selection (TASKS_BACKEND =
  memory | sqlite, TASKS_DATABASE_URL, TASKS_MAX_TITLE_LENGTH).
- README.md: documents the new layout and the expected layered test
  approach.

TypeScript (fixtures/typescript-vitest-cart/) additions:

- pricing.ts: FixedAmountDiscountPolicy and CompositeDiscountPolicy
  with "sum" vs "chain" stacking modes (the latter compounds discounts
  on the remaining subtotal).
- tax.ts (new): TaxCalculator interface; NoTaxCalculator,
  RegionalTaxCalculator (per-region rate table with default fallback),
  AsyncTaxRateProvider async seam, AsyncTaxCalculator adapter.
- shipping.ts (new): ShippingCalculator interface;
  FreeShippingCalculator, FlatShippingCalculator (with optional
  free-over-threshold), WeightBasedShippingCalculator (bracket-based
  with overflow cost).
- inventory.ts (new): PriceFetcher and InventoryChecker async seams,
  InventoryError with productId / requested / available, refreshPrices()
  helper.
- cart.ts: fixed pricing pipeline subtotal → discount (clamped) → tax
  (on the discounted subtotal) → shipping; async checkout() that
  refreshes prices, checks inventory (first denial wins,
  InventoryError thrown), and supports an AsyncTaxRateProvider for
  this call.
- product.ts: optional weightGrams (used by shipping) and currency.
- index.ts: barrel re-exports for all new symbols.
- README.md: documents the new layout and the expected layered test
  approach.

eval.yaml + eval.vally.yaml:

- Updated both polyglot prompts to name the new modules and seams
  (queries.apply_query, SqliteTaskRepository, tag endpoints,
  CompositeDiscountPolicy stacking, AsyncTaxRateProvider,
  WeightBasedShippingCalculator, PriceFetcher / InventoryChecker,
  InventoryError). Style remains open-ended (.NET-style) — no bullet
  list of test cases.
- Replaced the small rubric with outcome-based rubric items that grade
  the new behaviors: pipeline composition (tax on discounted
  subtotal), CompositeDiscountPolicy stacking-mode differences, weight
  bracket boundary semantics, async checkout() with mocked
  collaborators including InventoryError shape, queries.apply_query
  pagination boundaries, SqliteTaskRepository integration tests
  against an in-memory connection, multi-status assertions across
  200/201/204/400/404/409, and constructor validation on the boundary
  classes.
- Bumped per-command timeouts from 5m to 10m to absorb the larger
  test suite.

No skill description / SKILL.md changes — the skill description is
already accurate for these scenarios (1003 / 1024 chars).

* Enforce hard 80% coverage floor on polyglot fixtures

After the previous harden commit (c78532bf7), the polyglot scenarios still
scored a 5.0/5 baseline with no plugin-mode activation. Root cause: even on
the larger fixtures the judge ticked every rubric item because the baseline
agent wrote tests that *touched* each named module — the rubric grades
"covered this concept", not "covered this code path", so a strong baseline
naturally clears it.

The previous commit hardened the SURFACE of the fixtures. This commit
hardens the SUCCESS BAR by baking coverage thresholds into the test
runners themselves, so a baseline that skips an entire module fails the
existing pytest / vitest run-command assertion outright (assertion exit
code != 0 → run fails → judge cannot give 5/5).

Python (fixtures/python-flask-tasks/pyproject.toml):

- Added `pytest-cov>=5.0,<7.0` to the [test] extra so coverage is
  pre-installed (the agent no longer has to add it manually).
- Set `addopts = "-q --cov=tasks_api --cov-branch --cov-report=xml
  --cov-report=term-missing --cov-fail-under=80"`. pytest now exits
  non-zero when total line + branch coverage on tasks_api is below 80%,
  which makes the existing `python -m pytest` assertion fail.

TypeScript (fixtures/typescript-vitest-cart/vitest.config.ts):

- Added a `coverage` block that pre-configures provider: 'v8',
  reporter: ['lcov', 'text'], include: ['src/**/*.ts'], and thresholds
  of lines / statements / functions ≥ 80, branches ≥ 70. The agent no
  longer has to wire up the coverage provider. `npx vitest run
  --coverage` exits non-zero when any threshold is unmet.

Prompts (eval.yaml + eval.vally.yaml):

- Trimmed the prompts to drop the "configure coverage if not already
  there" guidance — coverage tooling is now pre-installed and the floor
  is fixed. The prompt now explicitly tells the agent the threshold is
  enforced and that incidental coverage will not clear the bar, so the
  agent's planning workflow has a concrete cross-module target to plan
  against.

READMEs: documented the new behavior so the agent reading the README
sees the coverage floor up front.

Verified locally: with an empty tests/ directory, pytest exits 1 with
"FAIL Required test coverage of 80% not reached" and `vitest run
--coverage` exits 1 with "Coverage for lines (0%) does not meet global
threshold (80%)". The existing run-command assertions therefore fail for
incomplete suites without needing any new assertion / grader.

* Address PR #709 review: snapshot deep-copy, due_at sort, tests/ wording

- cart.ts: snapshot() now deep-copies the Product on each line in addition

  to the CartLine, so callers mutating the returned snapshot can no longer

  reach back into the cart's internal state via line.product. (Copilot 3344261946)

- queries.py: _sort_key for 'due_at' returns a (is_none, isoformat) tuple

  so we never compare across the None / not-None boundary, and never

  trigger 'cannot compare naive and aware datetimes' TypeErrors when

  a stray naive datetime sneaks through. (Copilot 3347273389)

- README + eval.yaml + eval.vally.yaml: reword the 'tests/ directory is

  intentionally empty' phrasing to 'no test files yet — only a .gitkeep

  marker' so the docs are strictly accurate about what's on disk.

  (Copilot 3344580026 / 3344580055 / 3344580067 / 3344580085 / 3344580104

  / 3344580136 / 3344580156)

---------

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
2026-06-05 12:38:35 +00:00
Amaury Levé 7fc6d472c3 Add migrate-xunit-to-mstest skill (#718)
* Add migrate-xunit-to-mstest skill

Adds a skill to migrate .NET test projects from xUnit.net (v2 or v3) to

MSTest v4. Covers package replacement, attribute/assertion/fixture/lifecycle

translation, ITestOutputHelper -> TestContext, [Trait] -> [TestCategory]/

[TestProperty], and xUnit v3 TestContext.Current.CancellationToken.

Front-loads parallelization handling because xUnit parallelizes test classes

by default while MSTest serializes — the single largest source of post-

migration regressions. Step 11 enumerates three explicit choices and how to

translate CollectionBehavior/MaxParallelThreads/[Collection] settings.

Preserves the existing test platform (VSTest stays VSTest; MTP stays MTP)

by default — bundling a platform migration would violate the

test-migration agent's 'never mix migration steps' rule.

- plugins/dotnet-test/skills/migrate-xunit-to-mstest/SKILL.md (workflow)

- plugins/dotnet-test/skills/migrate-xunit-to-mstest/references/mapping-cheatsheet.md

- tests/dotnet-test/migrate-xunit-to-mstest/eval.yaml (12 scenarios)

- tests/dotnet-test/migrate-xunit-to-mstest/eval.vally.yaml (parity with sibling skill)

- plugins/dotnet-test/README.md (table entry)

- plugins/dotnet-test/agents/test-migration.agent.md (triage routing)

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Fix step cross-references flagged in PR review

- Step 1.5 'Custom DataAttribute' bullet pointed to Step 6 (assertions);

  custom DataAttribute mapping lives in Step 5 (data-driven tests).

- Step 7 lifecycle table 'Constructor' row pointed to Step 8 for

  ITestOutputHelper; ITestOutputHelper conversion is in Step 9 (output).

- Commit-strategy callout said 'after Step 5 (asserts fixed)' and 'after

  Step 9 (fixtures/lifecycle rewritten)'; asserts are in Step 6 and

  fixtures/lifecycle complete after Step 8.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Map [assembly: Xunit.Trait] to [assembly: TestCategory]/[TestProperty]

Both TestCategoryAttribute and TestPropertyAttribute target Assembly,

Class, and Method, so an xUnit [assembly: Trait] does not need to be

demoted to per-class/per-method MSTest attributes — assembly scope is

preserved 1:1.

- references/mapping-cheatsheet.md §8 now maps [assembly: Trait] to

  [assembly: TestCategory] / [assembly: TestProperty] instead of 'Remove'.

- SKILL.md Step 12 promoted to 'Convert' (was 'Remove'); the same mapping

  is documented inline.

- Notes after the Step 4 and §1 trait tables now disclose the assembly

  target so users do not assume class/method-only scope.

Addresses PR feedback from @Evangelink.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Address second round of PR review feedback

From @Evangelink:

- [Ignore]/[Timeout] do NOT discover a test on their own — they are

  modifiers. SKILL.md Step 4 + cheatsheet §1 now show [Fact(Skip)] ->

  [TestMethod] + [Ignore(...)] (and same for [Timeout]). Eval scenario 9

  rubric updated to require both attributes.

- TestProperty IS filterable (was incorrectly described as 'metadata that

  does not need filter integration'). Notes after the trait tables in

  both SKILL.md and cheatsheet §1 now show both filter syntaxes.

- For environmental gates (OS-/CI-/arch-conditional), point at MSTest

  3.10+'s condition attributes ([OSCondition], [CICondition],

  [ArchitectureCondition], [NonParallelizableCondition]) as the preferred

  alternative to overloading [TestCategory] or scattering Assert.Inconclusive

  through test bodies. Strengthened in cheatsheet §3.9, SKILL.md Step 6,

  Step 10 SkippableFact row, and the Common Pitfalls table.

- TestDataRow<T> is also a supported MSTest data source (strongly typed

  with per-row DisplayName/Ignore metadata). Added to both SKILL.md Step 5

  and cheatsheet §2 with link to the docs.

- MSTest.Sdk + <UseVSTest>true</UseVSTest> pulls in Microsoft.NET.Test.Sdk

  automatically — the manual PackageReference was incorrect. Removed it

  from both files (Step 2, Step 3 'common mistakes', and Common Pitfalls).

- Added the 'pin MSTest.Sdk in global.json msbuild-sdks' alternative as

  the recommended pattern for multi-project solutions.

- Xunit.Combinatorial -> Combinatorial.MSTest (Youssef1313 community port).

  Updated both SKILL.md Step 10 and cheatsheet §10.

From Copilot reviewer:

- MSTest.Sdk example in SKILL.md Step 2 Option B hardcoded

  <TargetFramework>net9.0</TargetFramework>, contradicting the

  preserve-TFM rule. Replaced with a placeholder + explicit comment.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Improve xUnit-to-MSTest skill effectiveness based on eval feedback

Eval results on PR #718 showed regressions on three rubric items where the

agent did the migration correctly but did not COMMUNICATE the judgement-call

decisions, so the judge could not verify the choice was deliberate:

- ICollectionFixture scope decision (rubric: 'Explicitly explains the scope

  decision instead of silently widening' scored 1/5 because the agent said

  'Let me convert everything' with zero scope discussion). Step 8 now requires

  a templated explanation of (source scope, target scope, what is shared, what

  is serialized, why the rejected alternative was rejected) before applying.

- Parallelization 'MSTest default is serial' messaging (rubric scored 1.7/5

  because the agent only implicitly conveyed it). Step 11 Choice A now demands

  a templated sentence explaining that the [assembly: Parallelize] is REQUIRED

  to match xUnit, otherwise the suite silently regresses to serial.

- Response Guidelines now lists the three judgement-call decisions that MUST

  be communicated up-front: fixture scope, parallelization model, and the

  Throws/ThrowsExactly semantic flip.

Additional fixes from this round:

- Step 2: explicit guidance to default to Option A (MSTest metapackage) when

  the user says 'preserve VSTest', so the safer PackageReference path is

  picked over MSTest.Sdk + UseVSTest.

- Step 4: pulled the '[Ignore]/[Timeout] are modifiers, need [TestMethod]'

  callout out of a table footer into a visible note above the table.

- known-domains.txt: allowlist github.com/Youssef1313/Combinatorial.MSTest

  (referenced from SKILL.md Step 10 and cheatsheet §10 after the recent

  Xunit.Combinatorial -> Combinatorial.MSTest switch).

Validator: green (24 skills, 11 agents).

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Add concrete TestContext.Current.CancellationToken migration example

The CancellationToken scenario was failing/low-scoring because the skill only
contained a one-line mapping with no concrete example. The agent often missed
the requirement to:

  - Add constructor TestContext injection (even when ITestOutputHelper is absent)
  - Map Assert.False -> Assert.IsFalse alongside the rename
  - NOT fabricate a CancellationTokenSource as a replacement

Add a full xUnit v3 -> MSTest worked example next to the TestContext.Current
mapping (Step 9), and reinforce the CancellationTokenSource warning in the
cheatsheet. The example covers all 3 rubric points for the scenario.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Address third round of PR review feedback

- Remove fictional MSTest condition attributes [ArchitectureCondition] and
  [NonParallelizableCondition] from SKILL.md and cheatsheet (only [OSCondition]
  and [CICondition] exist in MSTest 3.10+; for non-parallel intent use
  [DoNotParallelize], for architecture gating fall back to runtime
  Assert.Inconclusive). (Copilot)
- TestPropertyAttribute targets only [Class|Method] (no AttributeTargets.Assembly),
  so [assembly: TestProperty(...)] does not compile. Update the trait notes in
  SKILL.md Step 4, cheatsheet section 1, Step 12, and cheatsheet section 8 to
  collapse a non-category xUnit [assembly: Trait] to [assembly: TestCategory] or
  push it down to per-class [TestProperty]. (@Evangelink)
- Step 1 platform detection: stop inlining a buggy VSTest-vs-MTP matrix;
  delegate to the platform-detection skill. Note explicitly that
  <UseMicrosoftTestingPlatformRunner> only affects 'dotnet run' and is not a
  reliable runner signal. (@Youssef1313)
- Step 2 Option A: add MTP code-coverage caveat -- Microsoft.NET.Test.Sdk
  pulls VSTest's Microsoft.CodeCoverage transitively, which can interfere with
  MTP's collector. Prefer Option B (MSTest.Sdk without UseVSTest) for MTP
  projects. (@Youssef1313)
- Step 3: remove fictional MSBuild properties (<CaptureConsoleOutput>,
  <UseRoslynCompilers>); restate the bullet about xunit.runner.json -> Step 11
  port instead. Restate the <UseMicrosoftTestingPlatformRunner> bullet to make
  clear it is not a runner switch. (@Youssef1313)

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Address Copilot review round 4

- mapping-cheatsheet.md (Assert.Contains predicate): the suggested fallback
  Assert.Contains(collection.First(x => predicate), collection) is buggy --
  First() throws InvalidOperationException on no-match (changing the failure
  mode), and feeding the result back into Assert.Contains is circular. Keep
  only the correct translation: Assert.IsTrue(collection.Any(x => predicate)).
- SKILL.md Step 4 / cheatsheet table: stop instructing 'mark every class
  sealed'. xUnit projects commonly use base/derived test classes (shared
  setup, generic base fixtures); mechanically sealing them would break
  compilation. Sealing is now framed as an optional follow-up handled by
  writing-mstest-tests, not part of the mechanical migration.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

---------

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
2026-06-05 11:40:40 +02:00
Amaury Levé ecbecbc6f7 writing-mstest-tests: tighten description triggers (#712)
Refine the SKILL.md frontmatter description so the skill router has
sharper hooks for common MSTest test-writing prompts:

- Add concrete intent triggers (better MSTest assertion than
  Assert.IsTrue, replace hard cast with MSTest type assertion).
- Expand the assertion API surface listed in USE FOR with the modern
  MSTest 3.x/4.x set (IsInstanceOfType, Contains, ContainsSingle,
  IsEmpty/IsNotEmpty, DoesNotContain).
- Group related triggers (data-driven, lifecycle, parallelization)
  for readability.
- Tighten DO NOT USE FOR (drop redundant clauses) and explicitly
  exclude xUnit/NUnit/TUnit so the router doesn't grab non-MSTest
  prompts.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
2026-06-04 08:06:15 +02:00
Amaury Levé 49a77a90bf code-testing-agent: add polyglot pipeline examples for Python/TypeScript/Go/Java (#708)
* code-testing-agent: add polyglot pipeline examples for Python/TypeScript/Go/Java

The code-testing-agent skill family is polyglot in description but in
practice biased toward .NET because dotnet-examples.md was the only
filled-in pipeline walkthrough. The four sub-agents that participate in
the Research-Plan-Implement pipeline (researcher, planner, implementer,
generator) all pointed to dotnet-examples.md whenever they suggested a
concrete example, which made it harder for the agent to produce
idiomatic non-.NET tests (e.g. in msbench top5-* benchmarks for
Python/Flask, TypeScript/Express).

This change

* adds four new example files mirroring dotnet-examples.md format
  (source → research → plan → generated test → fix cycle → final report):
  - python-examples.md (pytest, unittest.mock, Mock(spec=...), parametrize)
  - typescript-examples.md (Vitest with notes for Jest; it.each,
    async tests, fake timers, ESM/CJS fix cycle)
  - go-examples.md (standard testing package, table-driven subtests,
    hand-written fake repository, injected clock)
  - java-examples.md (JUnit 5 + Mockito on Maven, @ParameterizedTest +
    @CsvSource, Clock.fixed, Surefire fix cycles)
* updates code-testing-extensions/SKILL.md TOC to list the new files
  and clarifies usage instructions to read the matching <language>-
  examples.md alongside the base extension
* makes the "Concrete example" pointers in code-testing-generator,
  code-testing-implementer, code-testing-planner and
  code-testing-researcher agents language-agnostic (list all available
  example files instead of hard-coding dotnet-examples.md)
* expands code-testing-researcher project-structure detection list to
  cover more Python (tox.ini, noxfile.py, requirements*.txt, uv.lock,
  poetry.lock, pdm.lock), JS/TS (.mts/.cts/.jsx, vitest.config.*,
  jest.config.*), C++ (CMakeLists.txt, BUILD.bazel, meson.build),
  Java/Kotlin (pom.xml, build.gradle[.kts], wrappers), and other
  ecosystem files; expands the Identify-Language section accordingly
* extends the "Language-Specific Examples" section in
  code-testing-agent/SKILL.md to summarise each example file

Validated with: skill-validator check --plugin ./plugins/dotnet-test
(23 skills, 11 agents — all checks passed) and markdownlint-cli2.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Address review feedback for #708

- go-examples.md: replace the hand-rolled `contains`/`stringIndex`
  helpers with `strings.Contains` from the standard library. The hand-rolled
  `contains` had subtly wrong semantics — `contains(""abc"", """")` returned
  `false` while `strings.Contains` returns `true` — and the helpers are
  unnecessary complexity for a code-generation example.
- go-examples.md: in the `go test -run` "wrong selection regex" sample fix
  cycle, quote the test name and use `single_item` (matching the underscore
  that the surrounding diagnosis text refers to) instead of the unquoted
  `single item` which the shell would parse as two separate CLI arguments.
- java-examples.md: the source-tree file list described `Invoice.java` as a
  `record` but the `InvoiceService.markAsPaid` example mutates the invoice
  via `setStatus(...)` and `setPaidDate(...)` — records are immutable, so
  the description was internally inconsistent. Re-describe it as a mutable
  POJO with explicit mutators to match the service code.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

---------

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
2026-06-02 13:42:46 +00:00
Amaury Levé 680292e04c Make dotnet-test analysis skills and auditor agent polyglot (#707)
* Make dotnet-test analysis skills and auditor agent polyglot

Five test analysis skills and the test-quality-auditor agent in
plugins/dotnet-test previously activated only on .NET MSTest/xUnit/NUnit/
TUnit cues, even though the underlying techniques (assertion diversity,
anti-pattern detection, pseudo-mutation gap analysis, academic smell
catalog, trait tagging) apply equally to other test frameworks.

This change makes them polyglot across .NET, Python (pytest/unittest),
TypeScript/JavaScript (Jest/Vitest/Mocha/node:test), Java (JUnit/TestNG),
Go, Ruby (RSpec/Minitest), Rust, Swift (XCTest/Swift Testing), Kotlin
(JUnit/Kotest), PowerShell (Pester), and C++ (GoogleTest/Catch2/doctest).

Changes
-------

* New reference skill `test-analysis-extensions` with per-language
  extension files (dotnet, python, typescript, java, go, ruby, rust,
  swift, kotlin, powershell, cpp). Each documents test markers,
  assertion APIs, sleep / time / random APIs, skip annotations,
  setup/teardown, mystery-guest indicators, integration markers, and
  tag-support capability for the corresponding framework.
* `assertion-quality`, `test-anti-patterns`, `test-gap-analysis`,
  `test-smell-detection`, `test-tagging` SKILL.md updated: frontmatter
  now lists all polyglot frameworks (keeping .NET trigger words for
  backward compat); bodies reference `test-analysis-extensions` and
  add per-language calibration (e.g., Go/Rust table-driven loops are
  idiomatic and not Conditional Test Logic; pytest bare `assert` is
  canonical; missing-await on async assertions is a new Critical smell).
* `test-quality-auditor` agent now runs language detection, gates
  .NET-only pipeline steps (coverage-analysis, CRAP, detect-static-
  dependencies, testability migration, experimental dotnet skills), and
  recommends native tooling for non-.NET projects via an explicit
  Capability Matrix.
* README updated to split sections by polyglot vs .NET-only.
* New polyglot eval scenarios added (Python/pytest, TS/Jest,
  Java/JUnit) alongside existing C# scenarios in
  `test-anti-patterns`, `assertion-quality`,
  `test-smell-detection`.

The .NET-only skills (writing-mstest-tests, migrate-*, coverage-analysis,
crap-score, detect-static-dependencies, run-tests, filter-syntax,
platform-detection, dotnet-test-frameworks, mtp-hot-reload, exp-*) are
unchanged and continue to activate only for .NET work.

Validated with skill-validator `check --plugin ./plugins/dotnet-test`.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Address PR #707 review feedback

* typescript.md: replace xpect.fail() recommendation (Jest has no
  such API) with 	hrow new Error(...) / explicit failing assertion.
* test-tagging SKILL.md description: clarify that unittest has no
  canonical tag syntax (pytest markers are the auto-edit mechanism;
  unittest is report-only). Switch doctest reference to "decorators"
  rather than implying a Catch2-style [tags] mechanism exists.
* test-tagging SKILL.md auto-edit list and table: use
  `* doctest::test_suite("tag")` decorator chain syntax for doctest
  in both the bullet list and the per-framework table, matching the
  example already shown.
* cpp.md extension: spell out the Catch2 vs doctest tagging
  distinction in the capability matrix (Catch2 [tag], doctest
  * doctest::test_suite("tag") decorator).

Validated with `dotnet run --project eng/skill-validator/src -- check
--plugin ./plugins/dotnet-test` (23 skills + 11 agents).

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

---------

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
2026-06-01 16:46:26 +02:00
Amaury Levé 2b7fcdd7ab dotnet-test: add Rule #0 (Confirm the Test Target) to ruby/powershell extensions (#702)
* dotnet-test: add Rule #0 (Confirm the Test Target) to ruby/powershell extensions

When the prompt does not name a specific file ("test the repository", "one
core module", "comprehensive suite"), agents frequently target the wrong
code — typically the largest upstream module that already has rich existing
tests — instead of the newly-added module the user actually wants tested.
Recent benchmark runs (top5-{ruby,powershell}-*-{simple,complex}) showed
this is a dominant failure mode for Ruby/PowerShell: the agent burns 50+
turns writing tests for files the verifier never measures, while the real
target (a small untracked `lib/string_utils.rb` or `tools/StringUtils.psm1`)
sits one `git status` away.

Adds a Rule #0 to both ruby.md and powershell.md, ahead of the existing
"Rule #1: Investigate the Repo First". The rule:

- Tells the agent to use git history (`git status -s`,
  `git ls-files --others --exclude-standard`,
  `git log --diff-filter=A --name-only -5`) to find the actual target
  rather than guessing from repo size.
- Documents a Test Placement Contract — RSpec scopes to `spec/`,
  Pester scopes to whatever directory the harness passes to
  `Invoke-Pester -Path`; tests placed elsewhere are invisible.
- Adds a First-Test Sanity Loop: write one test, run --dry-run /
  -PassThru to confirm discovery > 0, fix LoadError / Import-Module
  issues before expanding. Catches placement mistakes on turn 1.

Both files validate cleanly under skill-validator. The existing Rule #1
and all subsequent sections are unchanged — this is a pure prepend.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Potential fix for pull request finding

Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>

* Address PR review: clarify Rule #0 precedence and broaden require regex

- Rephrase Rule #0's discovery preamble in ruby.md and powershell.md to
  call out the commands as the read-only exception to Rule #1, removing
  the apparent contradiction between 'before planning' and Rule #1's
  'before writing any test or running any command'.
- Broaden the spec_helper require grep to match leading whitespace and
  `require_relative`, avoiding false negatives that send the agent to
  the wrong target.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

---------

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>
2026-06-01 10:22:38 +02:00
Amaury Levé 3123e607a1 dotnet-test: add explicit non-.NET guards to 5 skill descriptions (#705)
* dotnet-test: add explicit non-.NET guards to 5 skill descriptions

Five skills in plugins/dotnet-test have language-neutral trigger phrases
in their USE FOR sections that could plausibly mis-route on non-.NET
prompts in mixed-language workflows:

- writing-mstest-tests ("write unit tests for a class", "create test class")
- test-anti-patterns ("audit my tests", "test smell audit")
- assertion-quality ("identify assertion-free tests")
- test-gap-analysis ("find weak tests", "discover untested edge cases")
- test-tagging ("categorize, audit, or label tests with traits")

Each skill now has an explicit non-.NET exclusion clause in its
DO NOT USE FOR section, naming the most common languages it must NOT
match (Python, JS/TS, Go, Java, Rust, Ruby, PHP, Swift, Kotlin) and
restating that the skill only handles C#/F#/VB.NET test code.

This was surfaced by an MSBench investigation comparing a baseline
Copilot CLI run vs the same run with this pruned dotnet-test plugin
installed against the sweatlas-tw-unit benchmark (24 Python / 15 Go /
5 TS, 0 .NET). Both runs scored identically (15/44 resolved). Skills
correctly never fired (0 invocations across all 43 instances), so this
is a hardening change, not a bug fix — it makes the router's job easier
in heterogeneous repos and future benchmarks.

Validated with: dotnet run --project eng/skill-validator/src/SkillValidator.csproj -- check --plugin plugins/dotnet-test

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Potential fix for pull request finding

Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>

---------

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>
2026-06-01 10:21:13 +02:00
Amaury Levé 4f78daf583 run-tests: add platform-detection keywords for activation (#700)
* run-tests: add platform-detection keywords for activation

The 'Detect test platform from Directory.Build.props' eval scenario
regressed from 2.7/5 to 2.0/5 with run-tests not activated (skill
loaded column shows NOT ACTIVATED). The scenario prompt asks 'figure
out which test platform it uses' but the previous description framed
detection only as 'chooses the correct platform/SDK/framework syntax'
and 'selecting VSTest vs Microsoft.Testing.Platform command syntax' --
both focused on syntax selection, not on platform detection from
project files.

Per InvestigatingResults.md guidance for 'skill not activated'
failures, surface the detection use case explicitly with the file
names the scenario hinges on:

  detecting test platform/framework from \global.json\, \.csproj\,
  \Directory.Build.props\

Trim the syntax clause ('command syntax' -> 'syntax', 'including' ->
'incl.') and shorten the multi-TFM example (drop redundant
\dotnet test\ prefix) to stay under the 1,024-char description cap.

Folded description: 948 -> 1,010 chars.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* run-tests: rephrase platform detection with prompt-shaped language

The previous fix (021b0a343) activated the Detect test platform from
Directory.Build.props scenario in isolated mode but plugin-mode activation
still failed (1.3/5 → 1.7/5, isolated ✅ / plugin ⚠️ NOT ACTIVATED).

The scenario prompt asks the agent to `figure out which test platform`
a project uses, but the description used `detecting test
platform/framework` — the router did not bridge these phrasings when
competing sibling skills were loaded in plugin mode.

Changes:

- Replace `detecting test platform/framework from \global.json\...\` with
  `figuring out which test platform (VSTest vs Microsoft.Testing.Platform)
  a project uses from \global.json\, \.csproj\, \Directory.Build.props\
  and selecting the matching syntax\\. This mirrors the prompt verb
  `figure out\\ and merges the two adjacent clauses (detection +
  selection) into one stronger USE FOR entry.

- Trim verbose tokens elsewhere to stay within the 1024-char folded
  description cap (\SkillProfiler.cs\ MaxDescriptionLength): `TRX and
  other reporting` -> `TRX/reporting`, `writing or generating` ->
  `writing/generating`, `CI/CD pipeline configuration` -> `CI/CD
  config`, drop `e.g., ` from the VSTest/MTP mixups list.

Folded description length: 1010 -> 1007 / 1024.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* run-tests: lead description with platform detection as primary value

Plugin-mode activation still failed after the second iteration (2.0/5 →
2.3/5, isolated activates / plugin does NOT). Eval artifact analysis
(run 26581320083) shows the plugin agent actually correctly read
`Directory.Build.props` and identified MTP (rubric: 5/5 + 5/5 on
detection), but did NOT load the skill — so it missed the SDK 9 MTP
`--` separator rule and integration-test filtering (rubric: 1/5 + 1/5
on syntax), capping the score at 2/5.

The router declined to load the skill because the prior opening
sentence `Runs .NET tests with \dotnet test\ and chooses the correct
platform/SDK/framework syntax\\ sounded like base knowledge — the model
felt it could answer `run dotnet test` directly. The detection clause
was buried as the 2nd item in USE FOR, where the router did not weight
it strongly enough.

This rewrite leads the description with platform detection as the
primary value proposition:

  `For \dotnet test\: figures out which test platform (VSTest vs
  Microsoft.Testing.Platform) a project uses from \Directory.Build.props\,
  \global.json\, and \.csproj\, then picks the matching command
  syntax.\\

Other changes:

- Add a parallel USE FOR entry `identifying the test runner/platform
  from project files\\ to widen verb/noun coverage (`figures out` /
  `identifying`, `platform\\ / `runner`) for prompt phrasings the
  router may otherwise miss.

- Promote `\--\ separator rules on .NET SDK 8/9 vs 10+\\ from a
  parenthetical aside to a standalone USE FOR entry so it shows up as
  distinct specialized knowledge.

- Drop redundant `and selecting the matching syntax\\ since it is now
  in the opening sentence.

Folded description length: 1007 -> 994 / 1024. `skill-validator check`
green.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

---------

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
2026-05-28 21:28:08 +02:00
Tom Longhurst 36209c3b52 TUnit Fixes & Improvements (#677)
* Update target framework to net10.0 and upgrade TUnit package to version 1.45.8

* Fix and expand TUnit coverage in dotnet-test-frameworks reference

Cross-referenced against tunit.dev/llms.txt and the official attributes
comparison page. Corrects the test class marker (TUnit is convention-based,
not [ClassDataSource]), and fills in the previously-missing TUnit rows for
the assertion APIs, setup/teardown methods, exception-handling examples,
and integration test category marker.

* Refine TUnit assertion table accuracy

The Type row's TUnit cell now uses IsAssignableTo<T>() to match the
assignable-type semantics of the MSTest/xUnit/NUnit equivalents, with a
note pointing at IsTypeOf<T>() for exact-type checks. The Skip row now
documents that [Skip] also applies at class and assembly scope and that
Skip.Test("reason") handles dynamic in-test skipping.

Verified against the TUnit migration guides and the type-assertions docs.

* Spell out TUnit assertion alternatives as complete awaited expressions

The Boolean, Null, Exception, and Type rows in the assertions table
previously used a `await Assert.That(x).IsTrue()` / `.IsFalse()` shorthand
for the alternative form. A reader copy-pasting just the second fragment
would end up with an un-awaited assertion that silently passes — which
contradicts the note immediately below the table about always awaiting.
Each alternative is now a complete, independently copy-pasteable expression.

Addresses the inline review on dotnet/skills#677.

---------

Co-authored-by: Amaury Levé <amauryleve@microsoft.com>
2026-05-28 15:30:29 +02:00