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/haohao-end/openagent/020-flaskgit clone --depth 1 https://github.com/Haohao-end/openagentWrote 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/haohao-end/openagent/020-flask)<a href="https://agentmods.dev/rules/haohao-end/openagent/020-flask"><img src="https://agentmods.dev/badge/rules/haohao-end/openagent/020-flask.svg" alt="Measured on agentmods" 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 | $0.00000 | $0.00158 |
| Opus 5 | $0.00000 | $0.00079 |
| Sonnet 5 | $0.00000 | $0.00032 |
| Haiku 4.5 | $0.00000 | $0.00016 |
Grade A, and why
020-flask 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 4d 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
Flask Rules:
- All routes MUST use Blueprints (organized under api/internal/router/router.py).
- Dependency Injection: ALWAYS use Injector modules (see api/modules/).
- Configuration: load from .env, use app.config throughout.
- Responses: always jsonify() with proper HTTP status codes.
- Swagger/OpenAPI: add proper decorators/comments for /docs.
- CORS/CSRF: already configured globally — do not override.
- Never put routes directly in app.py — use blueprints.
JSON Handling:
- Request validation: use Pydantic or Flask-WTF schemas.
- Response serialization: use Pydantic models with .model_dump(mode='json').
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.
- 4d ago First seen · 17 lines · 0 tokens per session scan A dafec4bb3d7d
020-flask is a cursor rule published in the GitHub repository Haohao-end/openagent (807 stars, last pushed 1mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 158 tokens. 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 2026-08-30.
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