code-comments

code-comments is a skill for Claude Code, Codex from Generous-Corp/pulp. It costs 84 tokens per session (1,511 once invoked), scanned A, original, MIT.

How to write source comments, doc comments, and test names/tags that have lasting value — and what to never write. Consult before adding or editing comments in core/, examples/, tools/, test/, docs/, or any shipped source. Handles "write a comment", "is this comment ok", "comment hygiene", and keeping new code from…

Skill for Claude CodeCodex

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/generous-corp/pulp/code-comments
Any agent
npx skills add Generous-Corp/pulp --skill code-comments
Clone the repo
git clone --depth 1 https://github.com/Generous-Corp/pulp

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for code-comments

README.md
[![agentmods](https://agentmods.dev/badge/skills/generous-corp/pulp/code-comments.svg)](https://agentmods.dev/skills/generous-corp/pulp/code-comments)
Your own site
<a href="https://agentmods.dev/skills/generous-corp/pulp/code-comments"><img src="https://agentmods.dev/badge/skills/generous-corp/pulp/code-comments.svg" alt="Measured on agentmods" height="20"></a>
Per session 84 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,511 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00084 $0.01511
Opus 5 $0.00042 $0.00756
Sonnet 5 $0.00017 $0.00302
Haiku 4.5 $0.00008 $0.00151

Measured today against content hash b5179aff18d5, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

code-comments scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured today.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.agents/skills/code-comments/SKILL.md · 110 lines

How it starts

The opening of the file, as written. The whole thing — 110 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Writing Durable Comments

A comment earns its place by explaining something the code cannot say for itself and that will still be true next year: current behavior, an invariant, a non-obvious "why", an upstream/vendor/host quirk, a security or compat constraint, a regression- or RT-safety guard. It must not encode how the code got here — that provenance belongs in the commit message, planning/, docs/reports/, the changelog, or a commit trailer. This repo will be open-sourced; every comment is read by strangers with no access to our issue tracker or session history.

This skill exists so new code stops adding the exact provenance the repo-wide cleanup is removing. The cleanup backlog + classification rules are parked at planning/2026-07-02-comment-hygiene-PAUSED.md.

Never write these (the "Remove" category)

  • Phase / milestone / slice labels. No (Phase 4), Phase N will…, 4f-style sub-phase labels, Tier A Slice 7, Feature 3, plan item 7.2, item 6.12 follow-up. [phaseN] / [phase3-large] Catch2 tags are forbidden. Capital-letter+digit plan tags (C2, D6, M1) are the same kind of breadcrumb — the lint can't safely match them (they collide with MIDI note names and register labels), so it's on you to keep them out of comments.
  • Agent / review breadcrumbs. No Codex P1/P2/P0, codex review, [codex-*], "per the reviewer", "sub-PR", "slice N of".
  • Process/pipeline provenance. No [coverage], [codecov], [requested] selector tags; no "added for coverage".
  • Independent / reference-lineage process notes. The provenance audit trail lives in the Reference-Lineage: independent … commit trailer, never in a source comment. Describe the DAW/host behavior, not how you derived it.
  • Bare #1234 as the explanation. A PR/issue number is not a reason. If the issue explains a still-live invariant, state the invariant; a durable [issue-NNN] anchor on a regression test is fine (note: # is reserved in Catch2 tags — use [issue-NNN]).
  • Speculative future / roadmap. No "Future v2 …", "will support X later", TODO-for-a-someday-feature. (Real example removed: a Future v2 license-key payloads (post-RSA migration) bullet that was already inaccurate — current crypto is AES-256-GCM.)
  • WIP / "temporary" / "hack for now". Either it's the behavior (describe it) or it's a tracked task (put it in planning/).
  • Stale claims. A comment describing code that no longer exists is worse than none (real example removed: an orphaned CMAKE_BUILD_TYPE paragraph in a test that no longer checks a build-type field).

Read the full file on GitHub · 110 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. today First seen · 110 lines · 84 tokens per session scan A b5179aff18d5

Subscribe to this mod's changes

code-comments is a skill published in the GitHub repository Generous-Corp/pulp (16 stars, last pushed today), licensed MIT. It adds 84 tokens to every session and 1,511 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-04.

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