fission-ai__openspec/openspec/changes/enhance-validation-error-messages/tasks.md

1. Messaging enhancements

• 1.1 Inventory current validation failures and map each to the desired message improvements.
• 1.2 Implement structured error builders that include file paths, normalized header names, and example fixes.
• 1.3 Ensure openspec validate --help and troubleshooting docs mention the richer messages and debug tips.

2. Tests

• 2.1 Add unit tests for representative errors (no deltas, missing requirement body, missing scenarios) asserting the new wording.
• 2.2 Add integration coverage verifying the Next steps footer reflects contextual guidance.

3. Documentation

• 3.1 Update troubleshooting sections and CLI docs with sample output from the enhanced errors.
• 3.2 Note the change in CHANGELOG or release notes if applicable.