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https://github.com/cursor/plugins.git
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ericzakariasson
1cb26ef1ca
State file: .cursor/ralph/scratchpad.md Done flag: .cursor/ralph/done Cancel cleans up with rm -rf .cursor/ralph Co-authored-by: Cursor <cursoragent@cursor.com>
47 lines
1.4 KiB
Bash
Executable File
47 lines
1.4 KiB
Bash
Executable File
#!/bin/bash
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# afterAgentResponse hook for Ralph Loop.
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# Checks if the agent's response contains a matching completion promise.
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# If found, writes a done flag so the stop hook knows to end the loop.
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#
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# Input: { "text": "<assistant response text>" }
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# Output: none (fire-and-forget)
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set -euo pipefail
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HOOK_INPUT=$(cat)
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PROJECT_DIR="${CURSOR_PROJECT_DIR:-.}"
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STATE_FILE="$PROJECT_DIR/.cursor/ralph/scratchpad.md"
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DONE_FLAG="$PROJECT_DIR/.cursor/ralph/done"
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# No active loop, nothing to do
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if [[ ! -f "$STATE_FILE" ]]; then
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exit 0
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fi
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# Extract completion promise from state file frontmatter
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FRONTMATTER=$(sed -n '/^---$/,/^---$/{ /^---$/d; p; }' "$STATE_FILE")
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COMPLETION_PROMISE=$(echo "$FRONTMATTER" | grep '^completion_promise:' | sed 's/completion_promise: *//' | sed 's/^"\(.*\)"$/\1/')
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# No promise configured, nothing to check
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if [[ "$COMPLETION_PROMISE" = "null" ]] || [[ -z "$COMPLETION_PROMISE" ]]; then
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exit 0
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fi
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# Extract response text from hook input
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RESPONSE_TEXT=$(echo "$HOOK_INPUT" | jq -r '.text // empty')
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if [[ -z "$RESPONSE_TEXT" ]]; then
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exit 0
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fi
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# Check for <promise>TEXT</promise> in the response
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PROMISE_TEXT=$(echo "$RESPONSE_TEXT" | perl -0777 -pe 's/.*?<promise>(.*?)<\/promise>.*/$1/s; s/^\s+|\s+$//g; s/\s+/ /g' 2>/dev/null || echo "")
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if [[ -n "$PROMISE_TEXT" ]] && [[ "$PROMISE_TEXT" = "$COMPLETION_PROMISE" ]]; then
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touch "$DONE_FLAG"
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fi
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exit 0
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