Borrowing it
Nothing to install: this file belongs to JunMystery/Agent-Guidance-Python. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/JunMystery/Agent-Guidance-Python/main/.cursorrulesgit clone --depth 1 https://github.com/JunMystery/Agent-Guidance-PythonWrote 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/junmystery/agent-guidance-python/cursorrules)<a href="https://agentmods.dev/rules/junmystery/agent-guidance-python/cursorrules"><img src="https://agentmods.dev/badge/rules/junmystery/agent-guidance-python/cursorrules/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/junmystery/agent-guidance-python/cursorrules"><img src="https://agentmods.dev/badge/rules/junmystery/agent-guidance-python/cursorrules.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 | $0.01227 | $0.01227 |
| Opus 5.5 | $0.00491 | $0.00491 |
| Sonnet 5.5 | $0.00245 | $0.00245 |
| Haiku 4.5 | $0.00123 | $0.00123 |
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 2mo 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.
How it starts
The opening of the file, as written. The whole thing — 59 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Agent Guidance MCP — Tool Selection Priority
| You need to... | Use THIS tool first | Why |
|---|---|---|
| Start any task or phase | agent-guidance-mcp_task_pipeline(task="...") |
Recommendations + tree + code search + UI in ONE call |
| Check coding standards / skills | agent-guidance-mcp_guidance(operation="search", query="...") |
No other tool provides standards or skill lookup |
| Read a file | agent-guidance-mcp_project_context(operation="read", relative_path="...") |
Token-capped at 300 lines — prevents context blowout |
| Search codebase text | agent-guidance-mcp_project_context(operation="search", query="...") |
Ranked, bounded results. Fallback when codegraph unavailable |
| Understand code structure | agent-guidance-mcp_project_context(operation="structure", relative_path="...") |
Hierarchical view of classes, methods, functions in a file |
| Extract symbols | agent-guidance-mcp_project_context(operation="symbols", relative_path="...") |
Flat list of classes, functions, methods with signatures |
| Get structured workflow | agent-guidance-mcp_guidance(operation="workflow", identifier="plan") → "code" → "test" |
Enriched dev workflow with auto-chaining |
| Pre-code checklist | agent-guidance-mcp_guidance(operation="precode", query="...") |
Coding conventions, security, testing, arch, deploy rules |
| Post-code verification | agent-guidance-mcp_guidance(operation="verify", query="...") |
Auto-detect test/review/security/audit/deploy; suggests next workflow |
| Skill feedback loop | agent-guidance-mcp_guidance(operation="feedback", identifier="...", rating=1-5, query="...") |
Rate skills to boost future recommendations for similar tasks |
| Find symbol references | agent-guidance-mcp_project_context(operation="references", query="...") |
Locate all usages of a symbol across the codebase |
| Get UI/design guidance | agent-guidance-mcp_ui_ux(operation="search", query="...") |
Style, colors, typography, charts, slides |
| Check workflow stage | agent-guidance-mcp_workflow_gate(action="check"/"status"/"set_stage") |
Verify plan approvals and progress lifecycle |
| Persist/recover session | agent-guidance-mcp_session_continuity(operation="save"/"load"/"clear") |
State recovery / task checklist continuity |
| Browse project tree | agent-guidance-mcp_project_context(operation="tree") |
Optimized directory tree view |
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.
- 2mo ago First seen · 59 lines · 1,227 tokens per session scan A 02bee6a3631f
cursorrules is a cursor rule published in the GitHub repository JunMystery/Agent-Guidance-Python (2 stars, last pushed 3mo ago), licensed MIT. It adds 1,227 tokens to every session, about $0.0049 per session on Opus 5.5. 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
about-codebase
General information about the Lineai MCP Server codebase and its purpose.
validate-design-early
Ask for design approval before implementing 100+ lines.
ponytail
Ponytail, lazy senior dev mode. Always pick the simplest solution that works.
angular-20
This rule provides comprehensive best practices and coding standards for Angular development, focusing on modern TypeScript, standalone components, signals, and performance optimizations.
dev-standard
Apache Superset development standards and guidelines for Cursor IDE.
prefer-assertions-over-defensive-checks
Prefer assertions over defensive checks when data is guaranteed to be valid.