Plano is a proxy server and data plane that handles shared infrastructure for applications built with AI agents, including agent routing, orchestration, model selection, traces, metrics, and guardrails. Developers use it to connect agents and language models to production applications without embedding this middleware in each application. The catalogue entries provide skills and instructions for operating or developing with Plano.
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 skills/katanemo/plano/plano-advanced-patternsnpx skills add katanemo/plano --skill plano-advanced-patternsgit clone --depth 1 https://github.com/katanemo/planoWrote 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/skills/katanemo/plano/plano-advanced-patterns)<a href="https://agentmods.dev/skills/katanemo/plano/plano-advanced-patterns"><img src="https://agentmods.dev/badge/skills/katanemo/plano/plano-advanced-patterns.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 | $0.00030 | $0.00206 |
| Opus 5 | $0.00015 | $0.00103 |
| Sonnet 5 | $0.00006 | $0.00041 |
| Haiku 4.5 | $0.00003 | $0.00021 |
Grade A, and why
plano-advanced-patterns 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 5d 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
Plano Advanced Patterns
Use this skill for higher-order architecture decisions once fundamentals are stable.
When To Use
- "Design a multi-listener Plano architecture"
- "Improve prompt target schema precision"
- "Combine model, prompt, and agent listeners"
- "Refine advanced routing/function-calling behavior"
Apply These Rules
advanced-multi-listeneradvanced-prompt-targets
Execution Checklist
- Use multiple listeners only when interfaces are truly distinct.
- Keep provider/routing definitions shared and consistent.
- Define prompt target parameters with strict, explicit schemas.
- Minimize ambiguity that causes malformed tool calls.
- Provide migration-safe recommendations and test scenarios.
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.
- 5d ago First seen · 33 lines · 30 tokens per session scan A ad43d426ffcb
plano-advanced-patterns is a skill published in the GitHub repository katanemo/plano (7,037 stars, last pushed 16d ago), licensed Apache-2.0. It adds 30 tokens to every session and 206 once invoked, about $0.0002 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 2026-08-30.
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