jcodemunch-mcp: Command for Claude Code

.claude/commands/feature.md

feature is a command for Claude Code from jgravelle/jcodemunch-mcp. It costs 47 tokens per session (2,088 once invoked), scanned A, original, no licence file.

A command for adding a feature according to the repository's required specification and testing process. It requires failing tests first, several test levels, a benchmark comparison, review, and a completed checklist before opening a pull request.

In plain words
What is it for?
It helps plan and implement features, run the required tests and benchmarks, review the change, and prepare a pull request.
Why use it?
It prevents a feature from being submitted while required tests, checks, or review steps are still missing. TDD, or test-driven development, starts by writing a failing test before the implementation.

Command for Claude Code

Written for Claude Code: argument-hint in frontmatter.

This is jgravelle/jcodemunch-mcp's own configuration. It tells Claude Code how to work on jcodemunch-mcp itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything jcodemunch-mcp configures →

Reuse

Borrowing it

Nothing to install: this file belongs to jgravelle/jcodemunch-mcp. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/jgravelle/jcodemunch-mcp/main/.claude/commands/feature.md
Clone the repo
git clone --depth 1 https://github.com/jgravelle/jcodemunch-mcp

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 feature

README.md
[![agentmods](https://agentmods.dev/badge/commands/jgravelle/jcodemunch-mcp/feature/github.svg)](https://agentmods.dev/commands/jgravelle/jcodemunch-mcp/feature)
Your own site
<a href="https://agentmods.dev/commands/jgravelle/jcodemunch-mcp/feature"><img src="https://agentmods.dev/badge/commands/jgravelle/jcodemunch-mcp/feature/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 feature

Your own site · 80×15
<a href="https://agentmods.dev/commands/jgravelle/jcodemunch-mcp/feature"><img src="https://agentmods.dev/badge/commands/jgravelle/jcodemunch-mcp/feature.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 47 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 2,088 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 unknown 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 $0.00047 $0.02088
Opus 5.5 $0.00019 $0.00835
Sonnet 5.5 $0.00009 $0.00418
Haiku 4.5 $0.00005 $0.00209

Measured 17d ago against content hash ab25a5428fcd, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

feature 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 17d 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/feature.md · 119 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

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. 17d ago Changed · +4 lines ab25a5428fcd
  2. 27d ago Changed c007fd5f2ede
  3. 1mo ago Changed · +4 lines 7fcd7492fd7e
  4. 1mo ago First seen · 111 lines · 47 tokens per session scan A ff71cf77acbd

Subscribe to this mod's changes

feature is a command published in the GitHub repository jgravelle/jcodemunch-mcp (2,817 stars, last pushed today), with no licence file. It adds 47 tokens to every session and 2,088 once invoked, about $0.0002 per session on Opus 5.5. 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 2026-09-05.