github/spec-kit-copilot is a repository of GitHub Copilot integrations for Spec Kit, a toolkit for developing software through a structured specification-first workflow. It provides Copilot-specific commands, skills, canvases, and related workflow components for users of the Copilot CLI, Copilot App, and VS Code.
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 github/spec-kit-copilot --skill speckit-initgit clone --depth 1 https://github.com/github/spec-kit-copilotWrote 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/github/spec-kit-copilot/speckit-init)<a href="https://agentmods.dev/skills/github/spec-kit-copilot/speckit-init"><img src="https://agentmods.dev/badge/skills/github/spec-kit-copilot/speckit-init/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/github/spec-kit-copilot/speckit-init"><img src="https://agentmods.dev/badge/skills/github/spec-kit-copilot/speckit-init.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00113 | $0.01305 |
| Opus 5.5 | $0.00045 | $0.00522 |
| Sonnet 5.5 | $0.00023 | $0.00261 |
| Haiku 4.5 | $0.00011 | $0.00130 |
Grade A, and why
speckit-init 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 1mo 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 — 106 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Spec Kit — init
Initialize a spec-driven development project for GitHub Copilot with the
Specify CLI (specify). This skill exposes the specify init command. You (the
agent) run the CLI on the user's behalf via the shell; the CLI does the scaffolding.
Because this is the Copilot plugin, always scaffold Copilot in skills mode:
--integration copilot --integration-options="--skills"
This installs spec-kit commands (and any extensions added later) as Copilot
Agent Skills — .github/skills/speckit-<cmd>/SKILL.md — rather than the default
.github/agents/*.agent.md layout. Skills are what Copilot CLI discovers as SKILL.md,
so this keeps the project consistent with how this plugin works. Do not omit
--integration-options="--skills".
Prerequisite
This skill needs the specify CLI. Confirm it is available:
specify --version
If it is missing (command not found), use the speckit-cli-setup skill to install
it first, then continue.
When to use
- The user wants to start a new spec-kit project.
- The user wants to add spec-driven development to the current directory.
How to invoke
specify init scaffolds templates, scripts, the spec-kit workflow, shared
infrastructure, and the Copilot command files. It runs offline from assets
bundled in the installed CLI.
Common forms (always Copilot + skills mode). Pick the --script flavor for the
user's OS — sh on macOS/Linux, ps on Windows (the examples below use
sh; swap in --script ps on Windows):
# New project directory
specify init <project-name> --integration copilot --integration-options="--skills" --script sh
# Initialize in the current directory
specify init . --integration copilot --integration-options="--skills" --script sh
specify init --here --integration copilot --integration-options="--skills" --script sh
# Current directory is non-empty: skip the confirmation prompt
specify init --here --integration copilot --integration-options="--skills" --script sh --force
# Install a preset at init time
specify init <project-name> --integration copilot --integration-options="--skills" --script sh --preset healthcare-compliance
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.
- 1mo ago First seen · 106 lines · 113 tokens per session scan A 78210fd22063
speckit-init is a skill published in the GitHub repository github/spec-kit-copilot (18 stars, last pushed today), licensed MIT. It adds 113 tokens to every session and 1,305 once invoked, about $0.0005 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 2026-08-30.
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