What is fledgeling-plugins CLAUDE.md?

Repository instructions for Claude Code, an AI coding assistant, that explain how to add or rename a plugin correctly. They document the required files, registrations, README updates, commit, email draft, and site indexing steps.

Use them when adding or renaming plugins in the fledgeling-plugins repository and checking that each registration stays consistent.

They prevent a plugin from existing in the codebase but being missing from the install list or documentation.

fledgeling-plugins CLAUDE.md — Instructions file for coding agents by fledgeling-co: Repository instructions for Claude Code, an AI coding a

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.

agentmods

npx agentmods add instructions/fledgeling-co/fledgeling-plugins/claude-md

Clone the repo

git clone --depth 1 https://github.com/fledgeling-co/fledgeling-plugins

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/fledgeling-co/fledgeling-plugins/claude-md.svg)](https://agentmods.dev/instructions/fledgeling-co/fledgeling-plugins/claude-md)

Your own site

<a href="https://agentmods.dev/instructions/fledgeling-co/fledgeling-plugins/claude-md"><img src="https://agentmods.dev/badge/instructions/fledgeling-co/fledgeling-plugins/claude-md.svg" alt="Measured on agentmods" height="20"></a>

Per session 2,424 This file is loaded in full into every session.

When invoked 2,424 The same file — it is already loaded in full.

Security scan A 0 findings. Scan, not verified.

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	$0.02424	$0.02424
Opus 5	$0.01212	$0.01212
Sonnet 5	$0.00485	$0.00485
Haiku 4.5	$0.00242	$0.00242

Measured 5d ago against content hash bfc7a19d9b32, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

fledgeling-plugins 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 5d 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 · 181 lines

How it starts

The opening of the file, as written. The whole thing — 181 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CLAUDE.md

Guidance for Claude Code when working in this repository.

Adding or renaming a plugin — four places, one commit

A plugin is not "added" when its directory exists. It is added when it is installable and discoverable, and that takes four separate registrations. Land all of them in the same commit as the plugin itself: a plugin present in plugins/ but absent from the README is invisible to everyone who did not build it, and absent from marketplace.json it cannot be installed at all.

plugins/<name>/.claude-plugin/plugin.json — name, description, version, author. The name must match the directory and the marketplace entry exactly.
.claude-plugin/marketplace.json — append to plugins with source: "./plugins/<name>" and a category. Keep name and version identical to plugin.json; a mismatch installs the wrong thing or nothing.
plugins/<name>/README.md — what it does, how to invoke it, and what it refuses to do. This is the page the root README links to.
The root README.md row, in the ## The skills section.

The root README row has a shape, and it breaks quietly

Copy an existing block exactly. Each entry is four parts in this order, and the separator is load-bearing:

<br clear="left" />

<a href="plugins/<name>/README.md"><img src="plugins/<name>/assets/icon-256.png" align="left" width="110" alt="" /></a>

### [<name>](plugins/<name>/README.md)

One paragraph: what it does and what makes it different.

The icon is floated left at 110px, so every entry needs its own <br clear="left" /> before it. Omit it and the new icon floats up beside the previous entry's paragraph — the row is present in the source, renders as an overlapping mess, and reads to a human as "my plugin isn't in the README". That failure has happened; it is why this section exists.

Two things to verify before committing, because both fail silently:

plugins/<name>/assets/icon-256.png exists — the README shows a broken image otherwise, and nothing warns you.
git ls-files -s plugins/<name>/skills/*/scripts shows mode 100755 for anything executable. A script committed 644 fails at runtime for everyone who installs it, though it works fine on the machine that wrote it.

Read the full file on GitHub · 181 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.

5d ago First seen · 181 lines · 2,424 tokens per session scan A bfc7a19d9b32

Subscribe to this mod's changes

fledgeling-plugins CLAUDE.md is an instructions file published in the GitHub repository fledgeling-co/fledgeling-plugins (2 stars, last pushed today), licensed MIT. It adds 2,424 tokens to every session, about $0.0121 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.

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Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).

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fledgeling-plugins CLAUDE.md