What is grace-marketplace CLAUDE.md?

Repository instructions for the GRACE marketplace, a package that distributes coding-agent skills and includes tools for planning, checking, and publishing them.

Use them when maintaining GRACE skills, checking marketplace packages, keeping source and packaged files aligned, or working on the `grace lint` command.

They give an agent the repository context and working rules, reducing mistakes when changing the marketplace, its packaged copies, or its command-line tools.

How osovv/grace-marketplace configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to osovv/grace-marketplace. 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/osovv/grace-marketplace/main/CLAUDE.md

Clone the repo

git clone --depth 1 https://github.com/osovv/grace-marketplace

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.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/osovv/grace-marketplace/claude-md/github.svg)](https://agentmods.dev/instructions/osovv/grace-marketplace/claude-md)

Your own site

<a href="https://agentmods.dev/instructions/osovv/grace-marketplace/claude-md"><img src="https://agentmods.dev/badge/instructions/osovv/grace-marketplace/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.

Your own site · 80×15

<a href="https://agentmods.dev/instructions/osovv/grace-marketplace/claude-md"><img src="https://agentmods.dev/badge/instructions/osovv/grace-marketplace/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 667 This file is loaded in full into every session.

When invoked 667 The same file — it is already loaded in full.

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.

Model	Per session	Once invoked
Fable 5.1	$0.00667	$0.00667
Opus 5	$0.00333	$0.00333
Sonnet 5	$0.00133	$0.00133
Haiku 4.5	$0.00067	$0.00067

Measured 11d ago against content hash c82ce0f9b4f7, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

grace-marketplace 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 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.

CLAUDE.md · 56 lines

How it starts

The opening of the file, as written. The whole thing — 56 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Repository Context

This repository is the GRACE marketplace package, not an end-user application.

GRACE means Graph-RAG Anchored Code Engineering: a contract-first AI engineering methodology built around semantic markup, XML planning artifacts, knowledge-graph navigation, and verification/log-driven execution.

What This Repo Contains

skills/grace/* contains the canonical skill sources.
plugins/grace/skills/grace/* contains the packaged mirror used for Claude marketplace/plugin distribution.
.claude-plugin/marketplace.json defines the marketplace entry.
plugins/grace/.claude-plugin/plugin.json defines the packaged plugin manifest.
openpackage.yml defines OpenPackage metadata.
README.md is the user-facing overview and install guide.
package.json, src/grace.ts, and src/grace-lint.ts define the published Bun-powered CLI package @osovv/grace-cli and the grace lint command.
scripts/validate-marketplace.ts validates packaging, path safety, version sync, and packaged-vs-canonical drift.

Core Purpose

The repository packages and distributes GRACE skills so coding agents can:

initialize GRACE project artifacts
plan module architecture and contracts
design verification and log evidence
execute plans sequentially or in parallel-safe waves
inspect project health, refresh drift, review integrity, explain GRACE, and answer project questions

This repo is mainly about methodology content, skill instructions, and marketplace packaging.

Important Working Rules

Treat skills/grace/* as the main source of truth unless a task is explicitly about packaged output.
Keep plugins/grace/skills/grace/* synchronized with the canonical skills/grace/* copies when published skills change.
Keep versions synchronized across README.md, openpackage.yml, .claude-plugin/marketplace.json, and plugins/grace/.claude-plugin/plugin.json.
Validate repo integrity with bun run ./scripts/validate-marketplace.ts after packaging or metadata changes.
For CLI changes, run bun run validate:cli and exercise grace lint against a complete temporary or fixture GRACE 4 project. This packaging repository does not yet contain its own .grace state, so bun run grace lint --path . is expected to report project.missing-grace until a separate self-migration is approved.
Do not assume every directory under skills/grace/ is published; the actual shipped set is declared in .claude-plugin/marketplace.json.

Read the full file on GitHub · 56 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.

11d ago First seen · 56 lines · 667 tokens per session scan A c82ce0f9b4f7

Subscribe to this mod's changes

grace-marketplace CLAUDE.md is an instructions file published in the GitHub repository osovv/grace-marketplace (240 stars, last pushed 7d ago), licensed MIT. It adds 667 tokens to every session, about $0.0033 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.

Autonomous Agents Claude Code agent-skills ai-code-generation ai-engineering codex-cli

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grace-marketplace: Instructions file for Claude Code