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.
git clone --depth 1 https://github.com/blockscout/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/rules/blockscout/mcp-server/010-implementation-rules)<a href="https://agentmods.dev/rules/blockscout/mcp-server/010-implementation-rules"><img src="https://agentmods.dev/badge/rules/blockscout/mcp-server/010-implementation-rules/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/rules/blockscout/mcp-server/010-implementation-rules"><img src="https://agentmods.dev/badge/rules/blockscout/mcp-server/010-implementation-rules.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 | $0.00633 | $0.00633 |
| Opus 5.5 | $0.00253 | $0.00253 |
| Sonnet 5.5 | $0.00127 | $0.00127 |
| Haiku 4.5 | $0.00063 | $0.00063 |
Grade B, and why
010-implementation-rules scanned grade B with 1 finding 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 1mo 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.
Asks for rootmediumPrivilege escalation
A mod that escalates privileges can change anything on the machine, not only the project.
- Inside devcontainer: `sudo \`which uv\` pip install --system "<package>"` The source is not reproduced here
A licence we could not identify
The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.
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.
- 1mo ago First seen · 25 lines · 633 tokens per session scan B 242a9094606d
010-implementation-rules is a cursor rule published in the GitHub repository blockscout/mcp-server (46 stars, last pushed 1mo ago), with no licence file. It adds 633 tokens to every session, about $0.0025 per session on Opus 5.5. A static security scan graded it B with 1 finding (asks for root). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
Other cursor rules, from other repositories
API-Endpoints
Designs API endpoints and contracts (e.g., REST resources/endpoints, GraphQL schemas/queries/mutations), defining request/response formats, methods, status codes, and authentication requirements.
Generate-Types
Generates type definitions (e.g., TypeScript interfaces/types, Flow types, Python type hints, GraphQL SDL types) based on examples like JSON data, API responses, database schemas, or descriptions.
x402-stack
Standards for x402 backend integration and the Coinbase CDP SDK.
chainhooks
Cursor rule "chainhooks" from Mcsavvy/stacks-next-template-chainhooks-with-db, covering scope, concepts, configuration, api patterns and webhook handling.
django
Definitive guidelines for writing maintainable, performant, and secure Django applications, emphasizing modern best practices, clear code organization, and efficient patterns.
env-validation-gate
Env validation gate — every app with ≥1 required env var validates its contract at boot via Zod; raw process.env is banned outside the env module. Full pattern in .claude/skills/t2000-env-gate/.