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Krzysztof kuhy Rudnicki
006ef037f2
The supervisor hands the X grab to the Flutter app only once the app has printed WORKOUT_LOCK: ready, so the screen is covered continuously and a window that never started is never handed the machine. Enforcing that handshake needs a timeout that actually fires. readline() on a pipe blocks until a newline arrives, so polling the clock around it cannot bound the wait: against a real subprocess a 2s deadline took 30s, and the hang was then misreported as "exited before signalling ready" -- the wrong diagnostic for the wrong failure. The wait is now select-based and reads whatever bytes are available, since a half-written line would otherwise block inside readline() past the deadline just as surely. Reads accumulate before matching, because a chunk boundary can fall inside the marker and dropping it would strand a healthy app at the lock screen. Verified against real pipes, not fakes: a silent app and a partial line both time out on schedule, the ready line is still detected, and a marker split across two reads is reassembled. Split into _workout_ready for the 250-line cap. The grab handoff and the process hooks are injected as frozen dataclasses so both directions must be supplied at the call site and a test that fakes the process also fakes the wait. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01DfJC1Wu1SEgJ6X49k5Jqtg |
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|---|---|---|
| .github/workflows | ||
| docs | ||
| prompts | ||
| screen_locker | ||
| scripts | ||
| stronglift_replacement | ||
| .gitignore | ||
| .mcp.json | ||
| .pre-commit-config.yaml | ||
| arm.sh | ||
| CLAUDE.md | ||
| DESIGN_AUDIT_TODO.md | ||
| early-bird-workout-check.timer | ||
| install_autostart.sh | ||
| install_systemd.sh | ||
| install.sh | ||
| pyproject.toml | ||
| README.md | ||
| refactor_claude_todo.md | ||
| remove_autostart.sh | ||
| remove_systemd.sh | ||
| requirements.txt | ||
| run.sh | ||
| todo_finish_dart_250_prompt.md | ||
| todo_fix_pylint_10_prompt.md | ||
| workout-locker.service | ||
| workout-locker.timer | ||
| workout-sync.service | ||
| workout-sync.timer | ||
screen-locker
Tkinter/systemd screen locker with workout tracking, sick-day management, and wake-alarm integration. It enforces a workout cadence by locking the screen until a RunnerUp-verified (or explicitly justified) workout is logged.
MCP server (Claude Code integration)
screen-locker exposes a read-only MCP server (screen_locker._mcp) so
Claude Code and its subagents can query workout compliance and the
lock-decision state through typed tools — without shelling out to the
screen-locker-status CLI or opening the Tk window.
- Read-only tools:
get_status(full status snapshot),get_summary(one-line i3blocks summary +ok/warn/lockstate word),explain_lock(why the screen is / isn't locked right now),get_flags(the individual boolean lock-decision predicates for today). - There are no write/action tools, by design. Nothing here logs a workout or mutates state — workouts are logged only from RunnerUp-verified TCX data, never from a caller's claim. No tool exposes the sync token or any HMAC key.
The mcp SDK is an optional dependency (pip install -e '.[mcp]'), kept out of
the CLI/systemd system-python path. One-time setup of the dedicated venv that
Claude Code spawns:
./scripts/setup_mcp.sh
Registration lives in the checked-in .mcp.json (project scope).
Restart Claude Code in this repo and approve the project MCP-server prompt for it
to load. Verify with claude mcp list.