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codex-thread-heartbeat

Inspect and manage guarded Codex App-native or launchd heartbeats for Codex main control threads. Use when the user wants Codex to periodically continue a specific thread only when it is idle, avoid interrupting active work, keep App-visible interactions, inspect thread status, or enable/disable project autopilot heartbeats.

67

Quality

84%

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SecuritybySnyk

Low

Low-risk findings worth noting

SKILL.md
Quality
Evals
Security

Quality

Content

75%Weight 40%Scale 1-5

Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.

A well-organized, machine-specific skill: executable commands with real presets, an explicit transport-priority decision flow, and safety rules including a dry-run-first validation checkpoint. Weaknesses are minor — a few over-explained sections, no example of the core heartbeat subcommand, and no explicit pointer to the bundled script's full command surface.

Suggestions

Add one example of the core `heartbeat` subcommand (e.g., a dry-run against a named preset) and a line pointing to the script's `--help` for the full subcommand list, closing the actionability gap.

Trim the Transport Choice App-scheduler internals bullet ('checks renderer eligibility, collaboration mode, permissions, thread status, active flags, and recent rollout activity') to just the blocking states, and condense 'The pain it solves' into one line to reduce tokens.

Add an explicit post-enable verification step to the workflow (e.g., run `heartbeat-status <preset>` and confirm the first delivery in the log before walking away), which also strengthens the feedback loop for long-running launchd jobs.

DimensionReasoningScore

Conciseness

The body is mostly lean and focused on machine-specific facts Claude cannot infer (local thread records, transport limitations), but the Transport Choice scheduler-internals bullet ('checks renderer eligibility, collaboration mode, permissions, thread status, active flags') and the 'The pain it solves' / 'Open Source Positioning' sections could each be trimmed without losing guidance.

4 / 5

Actionability

Every command block is copy-paste ready with verified subcommands and preset names (heartbeat-presets, install-preset, heartbeat-enable/disable/status), but the core 'heartbeat' subcommand is never exemplified, the '--title/--cwd' flags appear once without explanation, and there is no pointer to the script's --help for the full command surface.

4 / 5

Workflow Clarity

The transport-choice priority list gives a clear decision sequence, and validation is present ('Prefer status or dry-run heartbeat before enabling an automation' plus the cs-notes-test one-off delivery test), but post-enable verification of an installed heartbeat and error-recovery steps are only implied.

4 / 5

Progressive Disclosure

The 769-line implementation is correctly kept in scripts/codex-thread-queue.py and every command block invokes it by path, so navigation to the bundle is implicit but obvious; however, there is no explicit signpost to where the rest of the tool's functionality is documented (e.g., 'run with --help for all subcommands').

4 / 5

Total

16

/

20

Passed

Description

87%Weight 40%Scale 1-5

Based on the skill's description, can an agent find and select it at the right time? Clear, specific descriptions lead to better discovery.

A strong description: it pairs a specific what-statement with an explicit multi-clause 'Use when' trigger list, and its niche is clearly distinct. The only notable weakness is that 'manage' leaves the full breadth of actions (install presets, dry-run heartbeat, resume) implicit.

DimensionReasoningScore

Specificity

Concrete actions are listed ('Inspect', 'inspect thread status', 'enable/disable project autopilot heartbeats') but the umbrella verb 'manage' is generic and the full action set (install presets, resume threads) is only in the body, so coverage has minor gaps rather than being comprehensive.

4 / 5

Completeness

The description explicitly answers both what ('Inspect and manage guarded Codex App-native or launchd heartbeats for Codex main control threads') and when ('Use when the user wants Codex to periodically continue a specific thread only when it is idle, avoid interrupting active work, keep App-visible interactions, inspect thread status, or enable/disable project autopilot heartbeats') with concrete trigger phrases.

5 / 5

Trigger Term Quality

Good natural-phrase coverage ('periodically continue a specific thread only when it is idle', 'avoid interrupting active work', 'autopilot heartbeats'), but common synonyms a user might say such as 'resume', 'nudge', or 'keep the thread alive' are missing.

4 / 5

Distinctiveness Conflict Risk

It occupies a clear niche — guarded heartbeats for Codex App-native or launchd main control threads — with trigger phrasing specific enough that it would not fire for generic scheduling, automation, or document skills.

5 / 5

Total

18

/

20

Passed

Validation

93%

Checks the skill against the spec for correct structure and formatting. All validation checks must pass before discovery and implementation can be scored.

Validation — 15 / 16 Passed

Validation for skill structure

CriteriaDescriptionResult

metadata_version

'metadata.version' is missing

Warning

Total

15

/

16

Passed

Repository

huangruiteng/CS-Notes

Path

.codex/skills/codex-thread-heartbeat/SKILL.md

Reviewed

Table of Contents

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