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 rules/llm-graph/postgres-mcp/strictgit clone --depth 1 https://github.com/llm-graph/postgres-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 | $0.00236 | $0.00236 |
| Opus 5 | $0.00118 | $0.00118 |
| Sonnet 5 | $0.00047 | $0.00047 |
| Haiku 4.5 | $0.00024 | $0.00024 |
Grade A, and why
strict 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 yesterday.
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.
What it actually says
You have to follow these rules:
Do:
- Strictly follow README.md requirements
- Use functional programming techniques exclusively
- Maintain immutability throughout
- Ensure all changes pass
bun test - Write isolated test cases using bun:test without mocks
- Use DRY principle across all files
- Always have bun-first mindset
Don't:
- Avoid OOP, classes, or inheritance
- Avoid traditional methods (use higher order functions instead)
- Don't write comments
- Don't use
anyorunknowntypes - Do not create code of simulation, stub, mock, etc. you should produce code of real expected features
- Should not create another files other than these:
src/constants.tsconfiguration defaultssrc/core.ts- Core functionalitysrc/types.ts- Type definitionssrc/utils.ts- Utility functionstest/e2e/* & test/unit/*- Test files
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.
- yesterday First seen · 28 lines · 236 tokens per session scan A 87cf4079a030
strict is a cursor rule published in the GitHub repository llm-graph/postgres-mcp (0 stars, last pushed 1y ago), licensed MIT. It adds 236 tokens to every session, about $0.0012 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 2026-09-01.
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