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/json-ai-mcp/cursorrulesgit clone --depth 1 https://github.com/CSOAI-ORG/json-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 | $0.00068 | $0.00068 |
| Opus 5 | $0.00034 | $0.00034 |
| Sonnet 5 | $0.00014 | $0.00014 |
| 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 2d 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.
What it actually says
json-ai-mcp - Auto-trigger Rules
When the user asks about json, use json-ai-mcp tools: validate_json, transform_json, diff_json, flatten_json
JSON AI MCP Server — JSON manipulation and validation tools.
Install: pip install json-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.
- 2d ago First seen · 10 lines · 68 tokens per session scan A 13de3196666a
cursorrules is a cursor rule published in the GitHub repository CSOAI-ORG/json-ai-mcp (0 stars, last pushed 4d ago), licensed MIT. It adds 68 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
When the user asks about real estate listing, use real-estate-listing-mcp tools: estimatevaluation, generatelisting, findcomparablesales, calculatemortgage, analyzeneighborhood.
cursorrules
When the user asks about pet care, use pet-care-ai-mcp tools: generatefeedingschedule, trackvaccinations, identifybreed, checkhealthsymptoms, gettrainingrecommendations.
cursorrules
When the user asks about fishkeeper, use fishkeeper-ai-mcp tools: analyzewaterparams, identifyfish, checkcompatibility, diagnosedisease, calculatestocking.
cursorrules
When the user asks about health check, use health-check-ai-mcp tools: checkendpoint, batchcheck, getuptimereport, configuremonitor.
cursorrules
When the user asks about html parser, use html-parser-ai-mcp tools: extractlinks, extracttext, validatehtml, findmetatags.
cursorrules
When the user asks about plagiarism checker, use plagiarism-checker-ai-mcp tools: checktextsimilarity, analyzewritingstyle, checkcitationcompleteness, generateoriginalityreport.