claude-md-revision

claude-md-revision is a skill for Claude Code from mrclrchtr/supi. It costs 45 tokens per session (1,746 once invoked), scanned A, original, MIT.

A session-learning workflow for recording durable, project-specific facts in files such as CLAUDE.md, .claude.local.md, or AGENTS.md.

In plain words
What is it for?
Use it to document non-obvious commands, configuration quirks, package relationships, testing approaches, and recurring project pitfalls.
Why use it?
It keeps important discoveries available to future coding sessions instead of losing them when a conversation ends.

Skill for Claude Code

Written for Claude Code: disable-model-invocation in frontmatter. Also seen: reads .claude/ paths; mentions CLAUDE.md; mentions AGENTS.md.

Good fit Use it to document non-obvious commands, configuration quirks, package relationships, testing approaches, and recurring project pitfalls.

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Install with agentmods
npx agentmods add skills/mrclrchtr/supi/claude-md-revision
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.

Any agent
npx skills add mrclrchtr/supi --skill claude-md-revision
Clone the repo
git clone --depth 1 https://github.com/mrclrchtr/supi

Made for: Claude Code.

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 claude-md-revision

README.md
[![agentmods](https://agentmods.dev/badge/skills/mrclrchtr/supi/claude-md-revision/github.svg)](https://agentmods.dev/skills/mrclrchtr/supi/claude-md-revision)
Your own site
<a href="https://agentmods.dev/skills/mrclrchtr/supi/claude-md-revision"><img src="https://agentmods.dev/badge/skills/mrclrchtr/supi/claude-md-revision/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for claude-md-revision

Your own site · 80×15
<a href="https://agentmods.dev/skills/mrclrchtr/supi/claude-md-revision"><img src="https://agentmods.dev/badge/skills/mrclrchtr/supi/claude-md-revision.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 45 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,746 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 5.1 $0.00045 $0.01746
Opus 5 $0.00023 $0.00873
Sonnet 5 $0.00009 $0.00349
Haiku 4.5 $0.00005 $0.00175

Measured 11d ago against content hash 880f5ce2bb37, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

claude-md-revision 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 11d ago.

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.

packages/supi-claude-md/skills/claude-md-revision/SKILL.md · 143 lines

How it starts

The opening of the file, as written. The whole thing — 143 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Revise CLAUDE.md with Session Learnings

Review the current session for actionable learnings and update the project's CLAUDE.md or .claude.local.md files. The goal is concise, durable context that helps future sessions work more effectively in this codebase.

Workflow

Step 1: Reflect

Identify what context would have helped this session go smoother. Scan the conversation for learnings worth preserving.

What TO capture:

  • Non-obvious commands/workflows discovered or used repeatedly (not routine build/test/lint — those are in package.json)
  • Gotchas and non-obvious patterns (deprecated APIs, common pitfalls, tricky behaviors)
  • Package relationships or ordering dependencies not obvious from code
  • Testing approaches that worked (or didn't)
  • Configuration quirks (env vars, build tools, path oddities)

What NOT to capture:

  • Obvious info already clear from code or naming
  • Generic best practices ("write tests", "use meaningful names")
  • One-off fixes unlikely to recur ("fixed typo on line 42")
  • Routine/easy-to-find commands: npm install, npm test, npm run build — these are in package.json or README and don't earn their place in the context window
  • Verbose explanations — one line per concept; link to docs for detail
  • Static facts SuPi already provides on the first turn or through routine code_orientation: package/module tables, manifest dependency graphs, project trees, direct directory inventories, and package manifest declarations

Filter ruthlessly. Every token must earn its place in the instruction file — if content doesn't save future sessions more time than it costs to read, remove it.

Before adding, consider removing. Scan the file for content that MUST be removed or compressed. Never skip removals because of edit churn—a one-time edit that saves tokens on every relevant load pays for itself quickly:

  • Routine command listings that are trivially discoverable from package.json — MUST remove (~50–200 tokens saved per session)
  • Sections that duplicate the complete first-turn module overview or facts available through routine code_orientation (package tables/paths, manifest dependency graphs, static project trees, direct directory listings, manifest declarations) — MUST remove unless they add ownership, flow, boundary, exception, or rationale
  • Verbose explanations where a one-liner suffices — compress (~20–100 tokens saved)
  • Stale commands, paths, or architecture descriptions that no longer match the codebase — remove

Read the full file on GitHub · 143 lines

Files

What ships with it

4 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 11d ago First seen · 143 lines · 45 tokens per session scan A 880f5ce2bb37

Subscribe to this mod's changes

claude-md-revision is a skill published in the GitHub repository mrclrchtr/supi (89 stars, last pushed today), licensed MIT. It adds 45 tokens to every session and 1,746 once invoked, about $0.0002 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 2026-08-30.