70 lines
2.3 KiB
Bash
70 lines
2.3 KiB
Bash
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#!/bin/bash
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# Continuous Learning - Session Evaluator
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# Runs on Stop hook to extract reusable patterns from Claude Code sessions
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#
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# Why Stop hook instead of UserPromptSubmit:
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# - Stop runs once at session end (lightweight)
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# - UserPromptSubmit runs every message (heavy, adds latency)
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#
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# Hook config (in ~/.claude/settings.json):
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# {
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# "hooks": {
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# "Stop": [{
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# "matcher": "*",
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# "hooks": [{
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# "type": "command",
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# "command": "~/.claude/skills/continuous-learning/evaluate-session.sh"
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# }]
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# }]
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# }
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# }
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#
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# Patterns to detect: error_resolution, debugging_techniques, workarounds, project_specific
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# Patterns to ignore: simple_typos, one_time_fixes, external_api_issues
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# Extracted skills saved to: ~/.claude/skills/learned/
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set -e
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SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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CONFIG_FILE="$SCRIPT_DIR/config.json"
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LEARNED_SKILLS_PATH="${HOME}/.claude/skills/learned"
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MIN_SESSION_LENGTH=10
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# Load config if exists
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if [ -f "$CONFIG_FILE" ]; then
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if ! command -v jq &>/dev/null; then
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echo "[ContinuousLearning] jq is required to parse config.json but not installed, using defaults" >&2
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else
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MIN_SESSION_LENGTH=$(jq -r '.min_session_length // 10' "$CONFIG_FILE")
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LEARNED_SKILLS_PATH=$(jq -r '.learned_skills_path // "~/.claude/skills/learned/"' "$CONFIG_FILE" | sed "s|~|$HOME|")
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fi
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fi
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# Ensure learned skills directory exists
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mkdir -p "$LEARNED_SKILLS_PATH"
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# Get transcript path from stdin JSON (Claude Code hook input)
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# Falls back to env var for backwards compatibility
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stdin_data=$(cat)
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transcript_path=$(echo "$stdin_data" | grep -o '"transcript_path":"[^"]*"' | head -1 | cut -d'"' -f4)
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if [ -z "$transcript_path" ]; then
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transcript_path="${CLAUDE_TRANSCRIPT_PATH:-}"
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fi
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if [ -z "$transcript_path" ] || [ ! -f "$transcript_path" ]; then
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exit 0
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fi
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# Count messages in session
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message_count=$(grep -c '"type":"user"' "$transcript_path" 2>/dev/null || echo "0")
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# Skip short sessions
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if [ "$message_count" -lt "$MIN_SESSION_LENGTH" ]; then
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echo "[ContinuousLearning] Session too short ($message_count messages), skipping" >&2
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exit 0
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fi
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# Signal to Claude that session should be evaluated for extractable patterns
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echo "[ContinuousLearning] Session has $message_count messages - evaluate for extractable patterns" >&2
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echo "[ContinuousLearning] Save learned skills to: $LEARNED_SKILLS_PATH" >&2
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