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 OKHP3/skillz --skill okhp3-copilot-studio-skill-foundrygit clone --depth 1 https://github.com/OKHP3/skillzWrote 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/okhp3/skillz/okhp3-copilot-studio-skill-foundry)<a href="https://agentmods.dev/skills/okhp3/skillz/okhp3-copilot-studio-skill-foundry"><img src="https://agentmods.dev/badge/skills/okhp3/skillz/okhp3-copilot-studio-skill-foundry/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/okhp3/skillz/okhp3-copilot-studio-skill-foundry"><img src="https://agentmods.dev/badge/skills/okhp3/skillz/okhp3-copilot-studio-skill-foundry.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 | $0.00087 | $0.01737 |
| Opus 5 | $0.00044 | $0.00869 |
| Sonnet 5 | $0.00017 | $0.00347 |
| Haiku 4.5 | $0.00009 | $0.00174 |
Grade A, and why
okhp3-copilot-studio-skill-foundry 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 6d 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 — 159 lines — stays where its author put it; the contents beside it link to each section on GitHub.
okhp3-copilot-studio-skill-foundry
OverKill Hill P3 · overkillhill.com · github.com/OKHP3
Create a reusable capability for a Copilot Studio agent. This Foundry treats a skill as one task-specific component in an agent design, explicitly separate from agent identity/instructions, knowledge sources, and tools.
Scope
| In scope | Out of scope |
|---|---|
| A focused reusable task capability usable by one or more Copilot Studio agents | Whole-agent personality, conversation design, or organizational policy |
| Markdown skill files and optional package contents | A connector, API, MCP server, action, or knowledge-source implementation |
| Authoring, sharing, testing, and package/deployment planning | Publishing to a live environment or changing agent configuration without approval |
Host contract
- Target: Copilot Studio agents/workflows powered by the GitHub Copilot harness.
- Skill shape: name, description, YAML frontmatter, Markdown instructions, and optionally a ZIP package with supporting files.
- Authoring route: use Build > Skills > Create from blank for an
agent-local draft, upload a Markdown skill file, or upload a ZIP whose root
contains
SKILL.md. The route changes acceptance and revision behavior, not the component boundary. - Activation: the orchestration runtime decides relevance using the request and skill description. Therefore descriptions need concrete trigger language and one coherent job.
- Component boundary: skills guide task behavior; instructions set general behavior, knowledge provides reference data, and tools connect external services. Do not conceal a tool dependency in a skill.
- Read references/copilot-studio-host-contract.md before defining the capability or package contents.
Foundry workflow
- Name a repeatable outcome that recurs across agents, not a one-off answer. Capture real task inputs, expected outputs, known corrections, failure conditions, and the agent surfaces expected to use it.
- Classify every requirement: skill instruction, agent instruction, knowledge source, tool/action/connector, or human approval. If a requirement crosses categories, record the dependency and integration point.
- Select the authoring route and test boundary. Record whether the package is an agent-local Build draft, one uploaded Markdown file, or a rooted ZIP. Require a Preview-tab test after creation or replacement; do not call upload validation successful task execution.
- Design the skill's activation description. It should identify the task, inputs, desired result, and exclusion terms that prevent it from absorbing a neighboring skill.
- Put the normal procedure and output template in
SKILL.md. Put detailed taxonomies, examples, or schemas inreferences/only when the workflow explicitly tells the agent when to load them. Bundle scripts only when their execution contract and environment have been validated. - Default to advice, analysis, and draft output. If a skill directs an agent to a tool or knowledge source, disclose the required component, permission assumption, input/output contract, and user approval point. The skill itself neither creates the tool nor expands its authority.
- Create normal, activation-collision/missing-dependency, and tool-action or prompt-injection evaluations. Test through a named Studio agent before claiming that an orchestrator selects or executes the skill correctly.
What ships with it
3 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.
- 6d ago First seen · 159 lines · 87 tokens per session scan A 53152d1878a3
okhp3-copilot-studio-skill-foundry is a skill published in the GitHub repository OKHP3/skillz (3 stars, last pushed yesterday), licensed MIT. It adds 87 tokens to every session and 1,737 once invoked, about $0.0004 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 2026-09-03.
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