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/rollbar/rollbar-mcp-server/claude-mdgit clone --depth 1 https://github.com/rollbar/rollbar-mcp-serverWrote 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/rollbar/rollbar-mcp-server/claude-md)<a href="https://agentmods.dev/instructions/rollbar/rollbar-mcp-server/claude-md"><img src="https://agentmods.dev/badge/instructions/rollbar/rollbar-mcp-server/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 | $0.00261 | $0.00261 |
| Opus 5 | $0.00130 | $0.00130 |
| Sonnet 5 | $0.00052 | $0.00052 |
| Haiku 4.5 | $0.00026 | $0.00026 |
Grade A, and why
rollbar-mcp-server CLAUDE.md scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 5d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
Copies of this mod
1 near-identical copy found in the catalogue:
- rollbar-mcp-server CLAUDE.md — 100% identical, 0 lines differ
What it actually says
CLAUDE.md
This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
Build and Development Commands
- Build:
npm run build - Lint:
npm run lint - Fix lint issues:
npm run lint:fix - Format check:
npm run format - Format write:
npm run format:write - Test individual tool:
npx @modelcontextprotocol/inspector --cli -e ROLLBAR_ACCESS_TOKEN=$TOKEN node build/index.js --method tools/call --tool-name TOOL_NAME --tool-arg ARG_NAME=ARG_VALUE --debug
Code Style Guidelines
- TypeScript with strict type checking
- ES Modules with Node16 module resolution
- Prettier for formatting (runs via ESLint)
- Error handling: Use try/catch blocks with typed errors
- Imports: Use
.jsextension in import paths for ESM compatibility - Interface naming: Prefix with descriptive name (e.g.,
RollbarApiResponse) - API interactions: Use helper functions like
makeRollbarRequest - Environment: Use dotenv for configuration
- Type safety: Use Zod for runtime type validation
- Error responses: Return structured error messages with type info
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 · 23 lines · 261 tokens per session scan A 77496d4690e8
rollbar-mcp-server CLAUDE.md is an instructions file published in the GitHub repository rollbar/rollbar-mcp-server (29 stars, last pushed yesterday), licensed MIT. It adds 261 tokens to every session, about $0.0013 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.
Other instructions, from other repositories
mcp-scribe CLAUDE.md
Instructions for The-Swarm-Corporation/mcp-scribe, covering claude.md, what this is, commands, formatting: black only. do not run ruff format and architecture.
mcp-router CLAUDE.md
Claude Code instructions for mcp-router/mcp-router, a project described as: A Unified MCP Server Management App (MCP Manager).
Genesis-World-MCP AGENTS.md
AGENTS.md instructions for Gnidreve/Genesis-World-MCP, covering agents.md — cas genesisworld mcp, what this is, standing orders — read first, design pillars and source layout & conventions.
atelier-mcp copilot-instructions.md
Copilot instructions for anshrajore/atelier-mcp, covering run npm run sync-adapters to update, universal ui/ux rules, universal backend architecture rules and framework presets (available in skills/atelier/presets/).
UEFN-TOOLBELT CLAUDE.md
Claude Code instructions for qfoldit/UEFN-TOOLBELT, covering uefn toolbelt — claude code context, ⚠️ mandatory: test in uefn before every commit, when to ask the user to test, two-phase validation workflow and the hard refresh bundle (paste into uefn python console).
UEFN-TOOLBELT AGENTS.md
AGENTS.md instructions for qfoldit/UEFN-TOOLBELT, covering uefn toolbelt — agent guide, what this repo is, non-negotiable rules, key files for agents and specialized agents in this repo.