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.
npx agentmods add instructions/makeamouse/fish-bridge-mcp/claude-mdgit clone --depth 1 https://github.com/MakeaMouse/fish-bridge-mcpWrote 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.
[](https://agentmods.dev/instructions/makeamouse/fish-bridge-mcp/claude-md)<a href="https://agentmods.dev/instructions/makeamouse/fish-bridge-mcp/claude-md"><img src="https://agentmods.dev/badge/instructions/makeamouse/fish-bridge-mcp/claude-md.svg" alt="Measured on agentmods" height="20"></a>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 | $0.00094 | $0.00094 |
| Opus 5 | $0.00047 | $0.00047 |
| Sonnet 5 | $0.00019 | $0.00019 |
| Haiku 4.5 | $0.00009 | $0.00009 |
Grade C, and why
fish-bridge-mcp CLAUDE.md scanned grade C with 1 finding 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.
Hidden instructionshighPrompt injection
Directives inside HTML comments, invisible characters or bidirectional overrides are read by the model and not by the person reviewing the file.
<!-- Add your project-specific AI instructions above this line. --> This is a copy
86% identical to fish-bridge-mcp copilot-instructions.md — 4 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
What it actually says
Project Instructions
Session Context (fish_bridge managed — do not edit)
<fish_bridge session="registry-launch-session" status="initializing">
</fish_bridge>
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 · 13 lines · 94 tokens per session scan C ea50d958aa29
fish-bridge-mcp CLAUDE.md is an instructions file published in the GitHub repository MakeaMouse/fish-bridge-mcp (2 stars, last pushed 1mo ago), licensed MIT. It adds 94 tokens to every session, about $0.0005 per session on Opus 5. A static security scan graded it C with 1 finding (hidden instructions). It is 86% identical to fish-bridge-mcp copilot-instructions.md, differing in 4 lines, and is treated as a copy.
Other instructions, from other repositories
fodda-mcp CLAUDE.md
Claude Code instructions for piers-fawkes/fodda-mcp, covering fodda — claude code project instructions, two brains, two stores (do not confuse them), when piers asks you to prepare a brief — default procedure and repo topology & routing (agents hand off cross-repo).
mcp-unity AGENTS.md
AGENTS.md instructions for CoderGamester/mcp-unity, covering mcp unity — ai agent guide (mcp package), purpose (what this repo is), how it works (high-level data flow), key defaults & invariants and repo layout (where to change what).
ChatCrystal AGENTS.md
AGENTS.md instructions for ZengLiangYi/ChatCrystal, covering agents.md, project overview, commands, development (server port 3721 + client port 13721) and build for production.
rails-ai-context AGENTS.md
AGENTS.md instructions for crisnahine/rails-ai-context, covering rails-ai-context, agent skills, issue tracker, triage labels and domain docs.
plugin-files-mode
Rosetta Plugin Mode Bootstrap.
inspecto CLAUDE.md
Claude Code instructions for inspecto-dev/inspecto, covering inspecto — claude code development guide, project overview, monorepo structure, development phases (load each file as needed) and key architectural decisions.