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/takuya0206/bigquery-mcp-server/claude-mdgit clone --depth 1 https://github.com/takuya0206/bigquery-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/takuya0206/bigquery-mcp-server/claude-md)<a href="https://agentmods.dev/instructions/takuya0206/bigquery-mcp-server/claude-md"><img src="https://agentmods.dev/badge/instructions/takuya0206/bigquery-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 5.1 | $0.00555 | $0.00555 |
| Opus 5 | $0.00278 | $0.00278 |
| Sonnet 5 | $0.00111 | $0.00111 |
| Haiku 4.5 | $0.00056 | $0.00056 |
Grade A, and why
bigquery-mcp-server CLAUDE.md scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 6d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
Copies of this mod
3 near-identical copies found in the catalogue:
- graylog-mcp CLAUDE.md — 100% identical, 0 lines differ
- graylog-mcp AGENTS.md — 100% identical, 2 lines differ
- sight-mcp CLAUDE.md — 91% identical, 19 lines differ
How it starts
The opening of the file, as written. The whole thing — 59 lines — stays where its author put it; the contents beside it link to each section on GitHub.
CLAUDE.md - Guidelines for Bun MCP Server
Implementation Rules
- See mcp.mdc at first and learn how to implement a MCP Server.
- Generate a appropriate package name and overwrite package.json
- Some examples using
setRequestHandler()to implement a tool or resource, but it's deprecated. Useserver.tool()orserver.resource()instead. - You can add a thrid party package if needed to meet the requirements.
- You can use Bun runtime features. Bun provides many built-in functions. See bun-file.mdc, bun-test.mdc, bun-glob.mdc, bun-utils.mdc
Build Commands
bun run build- Build the MCP server executablebun run show-package-name- Display the package name for installation- Install with:
cp dist/$npm_package_name $HOME/bin/
Code Style Guidelines
Imports & Organization
- Use named imports from MCP SDK:
import { McpServer, ResourceTemplate } from "@modelcontextprotocol/sdk/server/mcp.js" - Group imports by external packages first, then internal modules
TypeScript & Types
- Use Zod for parameter validation in tools and resources
- Prefer TypeScript strict mode with explicit type annotations
- Use async/await for asynchronous operations
Naming Conventions
- CamelCase for variables and functions
- PascalCase for classes and types
- Use descriptive names for resources, tools and prompts
MCP Best Practices
- Resources should be pure and not have side effects (like GET endpoints)
- Tools should handle specific actions with well-defined parameters (like POST endpoints)
- Write a enough description for tool and each parameters.
- Use ResourceTemplate for parameterized resources
- Properly handle errors in tool implementations and return isError: true
Error Handling
- Use try/catch blocks with specific error types
- Return proper error responses with descriptive messages
- Always close connections and free resources in finally blocks
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.
- 6d ago First seen · 59 lines · 555 tokens per session scan A b7477d604b7d
bigquery-mcp-server CLAUDE.md is an instructions file published in the GitHub repository takuya0206/bigquery-mcp-server (5 stars, last pushed 1y ago), licensed MIT. It adds 555 tokens to every session, about $0.0028 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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