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/blockrunai/blockrun-mcp/agents-mdgit clone --depth 1 https://github.com/BlockRunAI/blockrun-mcpWhat 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 | $0.00282 | $0.00282 |
| Opus 5 | $0.00141 | $0.00141 |
| Sonnet 5 | $0.00056 | $0.00056 |
| Haiku 4.5 | $0.00028 | $0.00028 |
Grade A, and why
blockrun-mcp AGENTS.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 3d 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:
- blockrun-mcp CLAUDE.md — 88% identical, 6 lines differ
What it actually says
BlockRun MCP
MCP server giving Codex real-time data — markets, research, X/Twitter, crypto. Pay per call with USDC.
Commands
npm install # install dependencies
npm run build # compile with tsup
npm run dev # watch mode (tsx)
npm start # start MCP server
npm run typecheck # type checking
Project structure
src/
├── index.ts # MCP server entry point
├── mcp-handler.ts # MCP protocol handler
├── tools/ # MCP tool implementations
├── types.ts # Type definitions
└── utils/ # Shared utilities
Key dependencies
@blockrun/llm— LLM gateway SDK (x402 payments)@modelcontextprotocol/sdk— MCP protocol SDKzod— Schema validationviem— Ethereum interactionqrcode— Wallet QR code display
Install in Codex
codex mcp add blockrun -- npx -y @blockrun/mcp@latest
Conventions
- TypeScript, ESM
- Build with tsup
- Node >= 20.19
- MIT license
- npm registry:
@blockrun/mcp
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.
- 3d ago First seen · 47 lines · 282 tokens per session scan A 9c660c654afe
blockrun-mcp AGENTS.md is an instructions file published in the GitHub repository BlockRunAI/blockrun-mcp (393 stars, last pushed 3d ago), licensed MIT. It adds 282 tokens to every session, about $0.0014 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
decision-anchor-sdk AGENTS.md
AGENTS.md instructions for zse4321/decision-anchor-sdk, covering decision anchor: document for agents, why this environment exists, when da matters, getting started and try it now.
prediction-friction-tracker CLAUDE.md
Claude Code instructions for ndrysdal-byte/prediction-friction-tracker, covering claude.md, environment, data & deployment, claude api usage — model is claude-sonnet-5 and rules-based extraction (extract.py, referencecheck.py).
intervals-icu-mcp CLAUDE.md
Instructions for hhopke/intervals-icu-mcp, covering claude.md, project overview, development commands, architecture (quick reference) and tool categories.
flyto-core CLAUDE.md
Instructions for flytohub/flyto-core, covering claude notes, cross-agent handoff and shared code intelligence.
rosetta llm-instruction-files-excluded-from-mdlint.instructions.md
LLM-targeted instruction files are excluded from markdownlint so authoring rules for human docs do not distort agent-facing guidance.
mcp-server-powerpoint code-review.instructions.md
Instructions for sbroenne/mcp-server-powerpoint, covering copilot code review, interop and resource safety, contract and path completeness and protocol, tests, and user-facing surfaces.