revise-claude-md

revise-claude-md is a command for Claude Code from runnithan/claudex-setup. It costs 11 tokens per session (389 once invoked), scanned A, original, MIT.

A command for updating CLAUDE.md, the instruction file used by Claude Code, with useful lessons from a work session.

In plain words
What is it for?
Use it after a coding session to review what was learned, find the relevant instruction file, and add concise reusable notes.
Why use it?
It preserves recurring commands, coding patterns, testing methods, and environment warnings so future sessions can work with less repeated discovery.

Command for Claude Code

Written for Claude Code: allowed-tools in frontmatter. Also seen: mentions CLAUDE.md; mentions Claude Code.

Part of the claudex-setup plugin — 3 skills, 21 commands, 6 agents shipped together

Good fit Use it after a coding session to review what was learned, find the relevant instruction file, and add concise reusable notes.

Compare 6 commands from other repositories ↓
Install with agentmods
npx agentmods add commands/runnithan/claudex-setup/revise-claude-md
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.

Clone the repo
git clone --depth 1 https://github.com/runnithan/claudex-setup

Made for: Claude Code.

Or install claudex-setup, the plugin that ships this one along with the rest of its 3 skills, 21 commands, 6 agents.

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 revise-claude-md

README.md
[![agentmods](https://agentmods.dev/badge/commands/runnithan/claudex-setup/revise-claude-md/github.svg)](https://agentmods.dev/commands/runnithan/claudex-setup/revise-claude-md)
Your own site
<a href="https://agentmods.dev/commands/runnithan/claudex-setup/revise-claude-md"><img src="https://agentmods.dev/badge/commands/runnithan/claudex-setup/revise-claude-md/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 revise-claude-md

Your own site · 80×15
<a href="https://agentmods.dev/commands/runnithan/claudex-setup/revise-claude-md"><img src="https://agentmods.dev/badge/commands/runnithan/claudex-setup/revise-claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 11 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 389 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.
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 $0.00011 $0.00389
Opus 5 $0.00005 $0.00195
Sonnet 5 $0.00002 $0.00078
Haiku 4.5 $0.00001 $0.00039

Measured 8d ago against content hash 76d92cfec39f, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

revise-claude-md 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 8d 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.

.claude/commands/revise-claude-md.md · 57 lines

What it actually says

Review this session for learnings about working with Claude Code in this codebase. Update CLAUDE.md with context that would help future Claude sessions be more effective.

Step 1: Reflect

What context was missing that would have helped Claude work more effectively?

  • Bash commands that were used or discovered
  • Code style patterns followed
  • Testing approaches that worked
  • Environment/configuration quirks
  • Warnings or gotchas encountered

Step 2: Find CLAUDE.md Files

find . -name "CLAUDE.md" -o -name ".claude.local.md" 2>/dev/null | head -20

Decide where each addition belongs:

  • CLAUDE.md - Team-shared (checked into git)
  • .claude.local.md - Personal/local only (gitignored)

Step 3: Draft Additions

Keep it concise - one line per concept. CLAUDE.md is part of the prompt, so brevity matters.

Format: <command or pattern> - <brief description>

Avoid:

  • Verbose explanations
  • Obvious information
  • One-off fixes unlikely to recur

Additions compete with existing instructions. Before adding, check whether an existing rule should be deleted or merged instead; if the file is being ignored, shorten it rather than emphasise. Prefer moving detail into a referenced file.

Step 4: Show Proposed Changes

For each addition:

### Update: ./CLAUDE.md

**Why:** [one-line reason]

\`\`\`diff
+ [the addition - keep it brief]
\`\`\`

Step 5: Apply with Approval

Ask if the user wants to apply the changes. Only edit files they approve.

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. 8d ago First seen · 57 lines · 11 tokens per session scan A 76d92cfec39f

Subscribe to this mod's changes

revise-claude-md is a command published in the GitHub repository runnithan/claudex-setup (1 stars, last pushed 7d ago), licensed MIT. It adds 11 tokens to every session and 389 once invoked, about $0.0001 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 2026-08-31.