impact

Show the environmental impact of this coding session.

Step 1: Find the session and get the numbers

The status line writes state to /tmp/ecoguilt-{session_id}.json and a per-cwd pointer at /tmp/ecoguilt-cwd-{hash}.txt. Use the pointer to find the correct session for this working directory:

CWD_HASH=$(echo -n "$PWD" | md5 2>/dev/null || echo -n "$PWD" | md5sum 2>/dev/null | cut -d' ' -f1)
SESSION_ID=$(cat "/tmp/ecoguilt-cwd-${CWD_HASH}.txt" 2>/dev/null)
if [ -n "$SESSION_ID" ]; then
  STATE_FILE="/tmp/ecoguilt-${SESSION_ID}.json"
else
  STATE_FILE=$(ls -t /tmp/ecoguilt-*.json 2>/dev/null | grep -v 'models\|test\|recommend\|cwd' | head -1)
  SESSION_ID=$(echo "$STATE_FILE" | sed 's|/tmp/ecoguilt-||; s|\.json||')
fi
echo "STATE: $STATE_FILE"; cat "$STATE_FILE" 2>/dev/null || echo '{}'

If the file is empty or missing, tell the user the status line hasn't recorded data yet.

The file contains: input_tokens, output_tokens, total_tokens, total_kwh, co2_g, water_ml, model, cost_usd, input_kwh_per_token, output_kwh_per_token.

These numbers are the single source of truth — they match what the status line displays. Do NOT recalculate energy, CO2, or water from tokens. Use the values from this file directly.

Step 2: Get Not Diamond's recommendation

Read the cached recommendation using the same session ID from step 1:

cat "/tmp/ecoguilt-${SESSION_ID}-recommend.json" 2>/dev/null || echo '{}'

If the file is empty, missing, or stale, run the recommend script. First find the transcript:

ls -t ~/.claude/projects/*/${SESSION_ID}.jsonl 2>/dev/null | head -1

If that doesn't find a file, try:

ls -t ~/.claude/projects/*/*.jsonl 2>/dev/null | head -1

Then:

bash ${CLAUDE_SKILL_DIR}/../../scripts/recommend.sh "<transcript_path>" 2>/dev/null || echo '{"error": "failed"}'

The response is JSON with model, provider, and messages_sent, or {"error": "no_api_key"} if the user doesn't have NOTDIAMOND_API_KEY set.