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dhanya elizabath jose 47b97d1037 feat(hooks): add SessionEnd progress logger and local progress tracker (#87)
* feat(hooks): add SessionEnd progress logger and local progress tracker

Adds a SessionEnd hook that prompts for modules studied at session end
and appends a record to ~/.claude-howto-progress.json — outside the repo
so progress survives git pull without being overwritten.

Also adds local-progress/index.html: a self-contained visual tracker
with checkboxes for all 10 modules, per-module notes, an overall progress
bar, and Export/Import to sync with a local JSON backup file.

Key patterns demonstrated:
- SessionEnd vs Stop (fires once on exit, not after every response)
- /dev/tty for interactive input in hooks (stdin carries the JSON payload)
- $CLAUDE_PROJECT_DIR for portable paths (never hardcode /Users/...)
- Guard clause to prevent global hook running in unrelated projects

Co-Authored-By: Claude Sonnet 4.6 (1M context) <noreply@anthropic.com>

* fix(hooks): address PR review — bash 3.2 compat, JSON escaping, textarea XSS
  - Replace pipeline+while with IFS for-loop (bash 3.2 compatible)
  - Pass NOTES as Python arg to avoid broken JSON on quotes/backslashes
  - Set textarea.value instead of innerHTML to prevent XSS from imported JSON
  Co-Authored-By: Claude Sonnet 4.6 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Sonnet 4.6 (1M context) <noreply@anthropic.com>
2026-04-26 20:20:22 +02:00

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#!/usr/bin/env bash
# SessionEnd hook: prompts for modules worked on, then appends a session record
# to ~/.claude-howto-progress.json for persistent learning progress tracking.
#
# Fires once when the Claude Code session terminates — not after every response.
# Uses /dev/tty for interactive input since stdin carries the hook's JSON payload.
#
# Install: add to .claude/settings.json under the "SessionEnd" event (see below).
PROGRESS_FILE="$HOME/.claude-howto-progress.json"
# Guard: only run inside this repo
if [[ "$CLAUDE_PROJECT_DIR" != *"claude-howto"* ]] && [[ "$PWD" != *"claude-howto"* ]]; then
exit 0
fi
# Create progress file if it doesn't exist
if [ ! -f "$PROGRESS_FILE" ]; then
echo '{"sessions":[]}' > "$PROGRESS_FILE"
fi
DATE=$(date +"%Y-%m-%d")
TIME=$(date +"%H:%M")
echo ""
echo "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"
echo " Claude Code — Learning Session End"
echo " $DATE $TIME"
echo "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"
echo ""
echo " Which modules did you work on? (e.g. 06,07 or press Enter to skip)"
echo " 01=Slash 02=Memory 03=Skills 04=Subagents 05=MCP"
echo " 06=Hooks 07=Plugins 08=Checkpoints 09=Advanced 10=CLI"
echo ""
printf " > "
read -r INPUT </dev/tty
if [ -z "$INPUT" ] || [ "$INPUT" = "skip" ]; then
echo " Skipped — no session logged."
echo ""
exit 0
fi
# Map short numbers to module names (for loop avoids pipeline+while, which bash 3.2 can't parse)
IFS=',' read -ra PARTS <<< "$INPUT"
MODULES_JSON=""
for m in "${PARTS[@]}"; do
m="${m// /}" # strip spaces
case "$m" in
01) label='"01-slash-commands"' ;;
02) label='"02-memory"' ;;
03) label='"03-skills"' ;;
04) label='"04-subagents"' ;;
05) label='"05-mcp"' ;;
06) label='"06-hooks"' ;;
07) label='"07-plugins"' ;;
08) label='"08-checkpoints"' ;;
09) label='"09-advanced-features"' ;;
10) label='"10-cli"' ;;
*) label="\"$m\"" ;;
esac
MODULES_JSON="${MODULES_JSON:+$MODULES_JSON,}$label"
done
printf " Notes? (optional, press Enter to skip): "
read -r NOTES </dev/tty
# Pass NOTES as a separate argument so Python handles JSON escaping —
# avoids broken JSON when notes contain quotes or backslashes.
python3 - "$PROGRESS_FILE" "$DATE" "$TIME" "$MODULES_JSON" "$NOTES" <<'PYEOF'
import sys, json
path, date, time_str, modules_raw, notes = sys.argv[1], sys.argv[2], sys.argv[3], sys.argv[4], sys.argv[5]
new_session = {
"date": date,
"time": time_str,
"modules": json.loads(f"[{modules_raw}]") if modules_raw else [],
"notes": notes,
}
with open(path, 'r') as f:
data = json.load(f)
data.setdefault('sessions', []).append(new_session)
with open(path, 'w') as f:
json.dump(data, f, indent=2)
PYEOF
echo ""
echo " Saved to $PROGRESS_FILE"
[ -n "$NOTES" ] && echo " Notes: $NOTES"
echo ""