What is medley CLAUDE.md?

A set of Claude Code instructions for contributing to the public Medley plugin. It covers project rules, hooks, how the engine is found, development, and testing.

Use it when developing or testing Spine-AI/medley, especially when working with its contributor rules, hooks, or engine discovery.

It gives contributors the project-specific guidance needed to avoid incorrect changes and follow the repository's development process.

How Spine-AI/medley configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to Spine-AI/medley. 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/Spine-AI/medley/main/CLAUDE.md

Clone the repo

git clone --depth 1 https://github.com/Spine-AI/medley

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/spine-ai/medley/claude-md/github.svg)](https://agentmods.dev/instructions/spine-ai/medley/claude-md)

Your own site

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

Per session 5,224 This file is loaded in full into every session.

When invoked 5,224 The same file — it is already loaded in full.

Security scan C 3 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.

Model	Per session	Once invoked
Fable 5.1	$0.05224	$0.05224
Opus 5.5	$0.02090	$0.02090
Sonnet 5.5	$0.01045	$0.01045
Haiku 4.5	$0.00522	$0.00522

Measured 2mo ago against content hash e85242112bb9, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade C, and why

medley CLAUDE.md scanned grade C with 3 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 2mo 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.

Reads agent configuration directoriesmediumAgent snooping

.claude/, .codex/, .gemini/ hold keys, settings and other credentials a mod has no legitimate need for.

3. **`plugin/scripts/uninstall.sh`** — that, plus each host's cache/marketplace, the `~/.codex/config.toml`

Reads MCP configurationmediumAgent snooping

mcp.json carries server URLs and auth tokens; reading it lets a mod discover and abuse other integrations.

- `scripts/mcp-headers.sh` — the `.mcp.json` **`headersHelper`** (see below). Emits the Bearer token

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

"requires arm64 / relaunch out of Rosetta" message), `curl`s it + `SHA256SUMS` from the R2 CDN

CLAUDE.md · 270 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.

2mo ago First seen · 270 lines · 5,224 tokens per session scan C e85242112bb9

Subscribe to this mod's changes

medley CLAUDE.md is an instructions file published in the GitHub repository Spine-AI/medley (5 stars, last pushed 2mo ago), with no licence file. It adds 5,224 tokens to every session, about $0.0209 per session on Opus 5.5. A static security scan graded it C with 3 findings (reads agent configuration directories, reads mcp configuration, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

medley CLAUDE.md next to 6 instructions from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
medley CLAUDE.mdSpine-AI/medley	Instructions file	5	2mo ago	none	C	5,224	Claude Code
vscode buildNext.instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	9,719	GitHub Copilot
next.js AGENTS.mdvercel/next.js	Instructions file	143k	today	MIT	A	7,461	Codex, OpenCode
vscode oss-third-party-notices.instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	5,516	GitHub Copilot
langchain AGENTS.mdlangchain-ai/langchain	Instructions file	149k	today	MIT	A	4,680	Codex, OpenCode
vscode copilot-instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	3,093	GitHub Copilot
deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness	Instructions file	275k	3d ago	MIT	A	4,313	Codex, OpenCode

medley: Instructions file for Claude Code