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.
git clone --depth 1 https://github.com/renanflustosa/octo-clusterWrote 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/renanflustosa/octo-cluster/cost-routing)<a href="https://agentmods.dev/rules/renanflustosa/octo-cluster/cost-routing"><img src="https://agentmods.dev/badge/rules/renanflustosa/octo-cluster/cost-routing/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/renanflustosa/octo-cluster/cost-routing"><img src="https://agentmods.dev/badge/rules/renanflustosa/octo-cluster/cost-routing.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 | $0.00167 | $0.00167 |
| Opus 5.5 | $0.00067 | $0.00067 |
| Sonnet 5.5 | $0.00033 | $0.00033 |
| Haiku 4.5 | $0.00017 | $0.00017 |
Grade A, and why
cost-routing 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 20d 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
Cost routing (lite)
Tier at start: L0 trivial · L1 local · L2 multi-file/tests · L3 architecture/hard bug · L4 critical.
Session model: L0 haiku · L1-L2 sonnet · L3-L4 opus. Mismatch → say once at start; never switch model mid-task (full cache rebuild).
Subagent only for broad fan-out search or verbose output; pass model: haiku for search. Else direct tools.
Retry cap: 2 failed attempts, same approach → stop, show evidence, propose escalation.
Verify: focused test on changed behavior first; widen only on failure.
Same manual task twice → propose script or skill.
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.
- 20d ago First seen · 14 lines · 167 tokens per session scan A d781979c7bef
cost-routing is a cursor rule published in the GitHub repository renanflustosa/octo-cluster (4 stars, last pushed 19d ago), licensed MIT. It adds 167 tokens to every session, about $0.0007 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 2026-09-26.
Other cursor rules, from other repositories
shell-scripts
Shell Scripts.
pn-n8n
n8n workflow safety and patterns. No secrets in workflow JSON; use credentials and env. Use when editing n8n workflows or workflow JSON.
pn-ci
CI/CD workflow and YAML conventions. No hardcoded secrets; use platform secrets. Use when editing GitHub Actions or GitLab CI.
handoff
Export a Waybill Bundle by default, or import one when explicitly requested.
roslyn-mcp-overview
RoslynMcpServer — architecture, layout, version, DI.
roslyn-mcp-docs-agents
Docs sync AGENTS/README, agent conventions, PowerShell, secrets.