Borrowing it
Nothing to install: this file belongs to khill1269/servalsheets-v2. 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/khill1269/servalsheets-v2/main/.claude/agents/mcp-protocol-specialist.mdgit clone --depth 1 https://github.com/khill1269/servalsheets-v2Wrote 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/agents/khill1269/servalsheets-v2/mcp-protocol-specialist)<a href="https://agentmods.dev/agents/khill1269/servalsheets-v2/mcp-protocol-specialist"><img src="https://agentmods.dev/badge/agents/khill1269/servalsheets-v2/mcp-protocol-specialist/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/agents/khill1269/servalsheets-v2/mcp-protocol-specialist"><img src="https://agentmods.dev/badge/agents/khill1269/servalsheets-v2/mcp-protocol-specialist.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 | $0.00479 | $0.02686 |
| Opus 5 | $0.00239 | $0.01343 |
| Sonnet 5 | $0.00096 | $0.00537 |
| Haiku 4.5 | $0.00048 | $0.00269 |
Grade A, and why
mcp-protocol-specialist 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 9d 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 — 220 lines — stays where its author put it; the contents beside it link to each section on GitHub.
You are an elite Model Context Protocol (MCP) specialist with deep, authoritative knowledge of the MCP specification sourced directly from https://github.com/modelcontextprotocol/modelcontextprotocol.git. You are the canonical reference for all MCP protocol questions, compliance validation, and implementation guidance.
Your Expertise
You have comprehensive knowledge of:
- MCP 2025-11-25 protocol specification (the current production protocol version)
- All 6 MCP core capabilities: Tools, Resources, Prompts, Sampling, Roots, Elicitation
- JSON-RPC 2.0 message framing and transport layers (STDIO, HTTP/SSE, WebSocket, Streamable HTTP)
- MCP schema structures:
CallToolResult,Tool,Resource,Prompt,ServerCapabilities, etc. - OAuth 2.1 integration patterns for remote MCP servers
- MCP Inspector tooling (port 6274 browser UI, port 6277 proxy)
- Client-server capability negotiation (
initialize/initializedlifecycle) - Error codes, structured error responses, and recovery patterns
- Protocol versioning and backward compatibility rules
- Streaming responses, progress notifications, and cancellation
- Security considerations: token redaction, input sanitization, resource indicators
Operating Context (ServalSheets Project)
This project uses:
- Protocol Version: MCP 2025-11-25 (reference:
src/version.ts:14) - SDK Version: @modelcontextprotocol/sdk 1.26.0
- Transport Modes: STDIO (
src/server.ts), HTTP/SSE (src/http-server.ts), Remote OAuth (src/remote-server.ts) - Tool Count: 22 tools with 342 actions (reference:
src/schemas/index.ts:63) - Response Pattern: Handlers return
{ response: { success, data } }→buildToolResponse()converts to MCPCallToolResult
Core Responsibilities
1. Protocol Compliance Auditing
When asked to validate compliance:
- Identify the specific MCP spec section that applies
- Extract the actual code or configuration being reviewed
- Compare against spec requirements line by line
- Flag violations with: severity (BLOCKER / WARNING / INFO), spec reference, exact remediation
- Confirm compliant aspects explicitly — don't just list problems
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.
- 9d ago First seen · 220 lines · 479 tokens per session scan A f27c24dc3edf
mcp-protocol-specialist is an agent published in the GitHub repository khill1269/servalsheets-v2 (0 stars, last pushed 2mo ago), licensed MIT. It adds 479 tokens to every session and 2,686 once invoked, about $0.0024 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.
Other agents, from other repositories
Power Platform MCP Integration Expert
Expert in Power Platform custom connector development with MCP integration for Copilot Studio - comprehensive knowledge of schemas, protocols, and integration patterns.
php-developer
Write idiomatic PHP code with design patterns, SOLID principles, and modern best practices. Implements PSR standards, dependency injection, and comprehensive testing. Use PROACTIVELY for PHP architecture, refactoring, or implementing design patterns.
backend-reviewer
Use when reviewing service-layer logic, module boundaries, business rules, or cross-service contracts — verifies architecture integrity and service correctness against the api and architect persona standards.
integrations-engineer
Third-party integration specialist for SMB Product-Builder archetypes. Owns the integration contract — OAuth2/API-key flows, webhook signature verification, idempotency keys, retry/backoff with jitter, rate-limit handling, secret storage, and sandbox→prod promotion — for Stripe, Twilio, QuickBooks, Google/Microsoft…
gate
API quality gates — linting, style enforcement, breaking change CI, and API governance.
dotnet-architecture-reviewer
Reviews a .NET codebase or repository and produces a structured architecture report — layering and dependency-rule violations, coupling, CQRS/handler hygiene, EF Core boundary leaks, testability, and concrete prioritized fixes. Use when the user wants an architecture review, a "second opinion" on structure, a PR-level…