Worklog logging

Skill thumperL/claude-worktrace/skills/worklog-logging

Lightweight work logger that captures what you accomplished in each Claude session. TRIGGER THIS SKILL when any of the following occur: (1) A session is ending or context is about to be compacted — capture what was done before it's lost. (2) At periodic context checkpoints (~25%, ~50%, ~75%) — routine logging, not a signal to stop. (3) The self-improve skill fires — piggyback on that trigger to also log work. (4) The user says "log this", "worklog", or wants to record what they've been doing. This skill ONLY handles logging — for standups, weekly summaries, monthly reviews, or any analysis of past work, use the worklog-analysis skill instead. Use this skill liberally. It's cheap to log and expensive to forget. IMPORTANT: After logging at a periodic checkpoint, resume the current task immediately. Never suggest ending the session, starting fresh, or doing a handoff.From its SKILL.md

Install

npx -y skills add thumperL/claude-worktrace --skill worklog-logging

Assembled from the repository path, not quoted from the project. Check it against their README if it does not work.

SKILL.md

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Worklog Logging

Capture what was accomplished in this session. This skill is intentionally lightweight — it logs and gets out of the way.

Storage

Files go to ~/Documents/AI/worklog/ for cross-device sync:

~/Documents/AI/worklog/
├── 2026-03-08-macbook-pro.md
├── 2026-03-08-mac-mini.md
├── 2026-03-07-macbook-pro.md
└── ...

Naming: YYYY-MM-DD-{hostname}.md — date-first for chronological sorting.

Fallback: ~/.claude/worklog/

Entry format

### HH:MM — [Project/Context] `sess-XXXX`

**Summary:**
- [What problem was solved and WHY — enough detail for a resume or performance review]
- [What was researched, what was learned, what conclusions were reached]
- [Key decisions made and their reasoning]

**Decisions:** [Optional — architectural or design decisions]

**Artifacts:** [Optional — PRs, deployments, docs created]

**Open:** [Optional — what's still pending]

---

Session ID (sess-XXXX): Derived from Claude's session_id (first 4 chars of the UUID), ensuring consistency across all entries in a session — PreCompact and SessionEnd hooks produce matching IDs. This distinguishes parallel sessions on the same machine.

What makes a good entry

Write as if explaining to a colleague or updating a resume months from now.

GOOD bullets — tell the story:

Fixed NaN in annualized return calculation — JS Math.pow fails with negative base + fractional exponent, added guard for total loss exceeding invested capital
Debugged worklog hooks not firing — root cause was Python 3.10 type syntax (dict | None) crashing on macOS system Python 3.9.6
Completed security audit of 98-file branch — reviewed branding APIs, file upload handlers, confirmed proper auth/RBAC checks and file validation
Researched IPv6 CIDR validation approaches, settled on ipaddr library for subnet handling

BAD bullets — mechanical noise:

Edited performance.ts
Ran 4 shell commands
Used TypeScript
Modified 3 files

Focus on the WHAT and WHY, never the HOW (tools used, files touched, tech stack). Those details are in git history if anyone needs them.

Checkpoint mode vs. interactive mode

Checkpoint triggers (~25/50/75% context):

Auto-save worklog silently — no confirmation needed for worklog entries
If self-improve also fires at this checkpoint, it handles its own user interaction separately
After saving, resume the current task without comment

All other triggers (session ending, explicit "log this", self-improve piggybacking) use the interactive flow below.

Process (interactive mode)

Gather context: hostname -s for machine, date for time, infer project from cwd/git/conversation
Draft entry: Focus on outcomes, decisions, problems solved. Be specific enough for a performance review months later.

Show user:

Worklog entry:
[the entry]
Save to worklog?

On confirmation, persist: Run the bundled Python script:

python3 "${CLAUDE_PLUGIN_ROOT}/scripts/write_worklog.py" \
  --date "2026-03-08" --time "14:30" --machine "macbook-pro" \
  --session "sess-f3a1" --project "acme-api" \
  --summary '["Fixed auth token refresh race condition — stale tokens survived logout", "Researched PKCE vs implicit flow, chose PKCE for public client security"]' \
  --decisions "Chose PKCE over implicit flow" \
  --artifacts "PR #142" --open "Update API docs"

Auto-capture via hooks

Hooks in hooks/hooks.json fire on PreCompact, /clear, and SessionEnd. Each reads the transcript, uses claude -p --model sonnet to generate a narrative summary, and persists it via write_worklog.py. Falls back to smart transcript parsing if the claude CLI is unavailable.

The same hook also detects user steering patterns and logs them via write_preferences.py --target log-only to ~/Documents/AI/self-improve/preferences-log.md. Steers are NOT auto-applied to CLAUDE.md — use the self-improve skill to review and promote them.

Integration with self-improve

When self-improve fires in interactive mode, also trigger this skill. Present both outputs (preferences learned + worklog entry) in a single confirmation. One interruption, two outputs saved.

When self-improve fires in checkpoint mode, worklog auto-saves silently while self-improve handles its own user interaction (options prompt) if patterns were found.