Borrowing it
Nothing to install: this file belongs to olgasafonova/miro-mcp-server. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/olgasafonova/miro-mcp-server/main/CLAUDE.mdgit clone --depth 1 https://github.com/olgasafonova/miro-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/olgasafonova/miro-mcp-server/claude-md)<a href="https://agentmods.dev/instructions/olgasafonova/miro-mcp-server/claude-md"><img src="https://agentmods.dev/badge/instructions/olgasafonova/miro-mcp-server/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.
<a href="https://agentmods.dev/instructions/olgasafonova/miro-mcp-server/claude-md"><img src="https://agentmods.dev/badge/instructions/olgasafonova/miro-mcp-server/claude-md.svg" alt="Reviewed on agentmods" width="80" 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 | $0.01645 | $0.01645 |
| Opus 5.5 | $0.00658 | $0.00658 |
| Sonnet 5.5 | $0.00329 | $0.00329 |
| Haiku 4.5 | $0.00164 | $0.00164 |
Grade A, and why
miro-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.
How it starts
The opening of the file, as written. The whole thing — 121 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Miro MCP Server
Project
Go MCP server for Miro REST API v2. 110 tools across boards, items, diagrams, mindmaps, code widgets, comments, canvas SVG, tags, groups, connectors, export, and audit. OAuth2 + token auth. Single binary with stdio + HTTP transport.
Architecture
main.go— entry point, config, stdio transport, tool registrationhttp.go— HTTP transport: middleware, routing, health/metrics endpoints, bearer-token validation, shutdownauth.go—authsubcommands (login, status, logout)instructions.go— MCP server instructions textmiro/client.go— HTTP client with connection pooling (100 max idle, 10 per host)miro/cache.go— LRU cache with 2-minute TTLmiro/circuitbreaker.go— circuit breaker isolating failing endpointsmiro/ratelimit.go— adaptive rate limiting using Miro response headersmiro/errors.go— structured errors with retryable flagmiro/diagrams/— Mermaid parser for flowchart/sequence diagram generationmiro/audit/— local execution audit log (JSON file-based)miro/oauth/— OAuth2 authentication flowtools/definitions.go— ToolSpec declarations with annotations (ReadOnly, Destructive, Idempotent)tools/handlers.go— HandlerRegistry with generic makeHandler[Args, Result] + panic recovery + audit loggingprompts/prompts.go— MCP workflow prompts (sprint board, retro, brainstorm, story map, kanban)resources/resources.go— MCP resource URIs (board summary, items, frames)evals/— tool selection + argument correctness benchmarks
Key Patterns
makeHandler[Args, Result]generic wraps every tool handler with: panic recovery, timing, audit event creationHandlerRegistry.buildHandlerMap()maps Method name -> registration function; adding a tool = one map entryToolSpecannotations drive MCP tool hints (ReadOnly, Destructive, Idempotent, OpenWorld)- All API methods live on the
MiroClientinterface for testability (mock intools/mock_client_test.go) - Mermaid diagrams parsed locally (no external service), supporting flowchart + sequenceDiagram
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 Changed · +3 lines · +47 tokens per session cbc964c2b3d2
- 1mo ago First seen · 118 lines · 1,598 tokens per session scan A 7ac4339a2d94
miro-mcp-server CLAUDE.md is an instructions file published in the GitHub repository olgasafonova/miro-mcp-server (31 stars, last pushed yesterday), licensed MIT. It adds 1,645 tokens to every session, about $0.0066 per session on Opus 5.5. 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.
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