microsoft/cat-agent-skills is a static website that catalogs reusable instruction sets and related packages for AI agents. People use it to search, filter, rate, and download skills for Cowork, Copilot Studio, and Scout, along with Copilot plugins and Scout automations. The catalogue entries are the skills, instructions, plugins, and settings displayed by the site.
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 skills add microsoft/cat-agent-skills --skill shift-plan-draftgit clone --depth 1 https://github.com/microsoft/cat-agent-skillsWrote 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/microsoft/cat-agent-skills/shift-plan-draft)<a href="https://agentmods.dev/skills/microsoft/cat-agent-skills/shift-plan-draft"><img src="https://agentmods.dev/badge/skills/microsoft/cat-agent-skills/shift-plan-draft/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/skills/microsoft/cat-agent-skills/shift-plan-draft"><img src="https://agentmods.dev/badge/skills/microsoft/cat-agent-skills/shift-plan-draft.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 | $0.00060 | $0.00313 |
| Opus 5.5 | $0.00024 | $0.00125 |
| Sonnet 5.5 | $0.00012 | $0.00063 |
| Haiku 4.5 | $0.00006 | $0.00031 |
Grade A, and why
shift-plan-draft 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 today.
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
Shift Plan Draft
Purpose
Terminal artifact: the shift plan rendered from templates/shift-plan-template.md, populated only from the contract payload.
When to use
End of every planning run.
Inputs
optimized.json (full payload).
Steps
- Validate against the contract; escalations (gates, overload, protected commitments) lead the draft.
- Fill the template: sequence with families and changeovers, material-gated starts, utilization with changeovers included, naive-vs-optimized comparison.
- Mark DRAFT - the planner publishes to execution systems; this plugin never does (#5).
Output
SHIFT-PLAN-.md - terminal artifact.
Grounding requirements
Every line cites the engine output; the comparison table is the engine's, verbatim.
Constraints
- Draft-first (#5): never claim the plan is published or systems updated.
- Nothing in the plan that is not in the contract payload.
Escalation / uncertainty
A plan with unresolved late committed orders is titled a TRADEOFF DRAFT, not a plan.
What ships with it
4 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- today First seen · 27 lines · 60 tokens per session scan A 9f5bbfcfbba0
shift-plan-draft is a skill published in the GitHub repository microsoft/cat-agent-skills (93 stars, last pushed today), licensed MIT. It adds 60 tokens to every session and 313 once invoked, about $0.0002 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 2026-10-28.
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