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/csoai-org/diff-ai-mcp/cursorrulesgit clone --depth 1 https://github.com/CSOAI-ORG/diff-ai-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 | $0.00067 | $0.00067 |
| Opus 5 | $0.00034 | $0.00034 |
| Sonnet 5 | $0.00013 | $0.00013 |
| Haiku 4.5 | $0.00007 | $0.00007 |
Grade A, and why
cursorrules 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
diff-ai-mcp - Auto-trigger Rules
When the user asks about diff, use diff-ai-mcp tools: diff_texts, diff_files, generate_patch, apply_patch
MCP server for diff ai mcp operations
Install: pip install diff-ai-mcp
By MEOK AI Labs — MIT licensed.
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 · 10 lines · 67 tokens per session scan A d816a570b107
cursorrules is a cursor rule published in the GitHub repository CSOAI-ORG/diff-ai-mcp (0 stars, last pushed 2mo ago), licensed MIT. It adds 67 tokens to every session, about $0.0003 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 cursor rules, from other repositories
cursorrules
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When the user asks about habit tracker, use habit-tracker-ai-mcp tools: createhabit, logcompletion, gethabitstreak, gethabithistory, getallhabits.
cursorrules
When the user asks about password, use password-ai-mcp tools: generatepassword, checkstrength, hashpassword, estimatecracktime.
cursorrules
When the user asks about readme generator, use readme-generator-ai-mcp tools: generatereadme, analyzeproject, suggestsections, generatebadges.
cursorrules
When the user asks about crypto tracker, use crypto-tracker-ai-mcp tools: trackprice, comparecryptos, calculateportfolio, getmarketcap.