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-selfgit 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-self)<a href="https://agentmods.dev/skills/github/spec-kit-copilot/speckit-self"><img src="https://agentmods.dev/badge/skills/github/spec-kit-copilot/speckit-self/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-self"><img src="https://agentmods.dev/badge/skills/github/spec-kit-copilot/speckit-self.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 | $0.00084 | $0.00353 |
| Opus 5.5 | $0.00034 | $0.00141 |
| Sonnet 5.5 | $0.00017 | $0.00071 |
| Haiku 4.5 | $0.00008 | $0.00035 |
Grade A, and why
speckit-self 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.
What it actually says
Spec Kit — self (CLI maintenance)
Maintain the Specify CLI itself with the specify self command group.
Prerequisite: needs the
specifyCLI. Ifspecify --versionfails, install it with the speckit-cli-setup skill first.
When to use
- The user asks whether a newer
specify-clirelease exists. - The user wants to upgrade the CLI, or preview what an upgrade would do.
How to invoke
# Read-only: is a newer release available?
specify self check
# Preview the upgrade without changing anything
specify self upgrade --dry-run
# Upgrade in place
specify self upgrade
# Upgrade to a specific pinned release
specify self upgrade --tag <version>
Notes
specify self checkis read-only and safe.- Run
specify self upgrade --dry-runfirst and show the user the preview before performing an actual in-place upgrade. - After upgrading, run
specify version(see the speckit-check skill) to confirm the new version.
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 · 42 lines · 84 tokens per session scan A 3ae409f36ef4
speckit-self is a skill published in the GitHub repository github/spec-kit-copilot (18 stars, last pushed today), licensed MIT. It adds 84 tokens to every session and 353 once invoked, about $0.0003 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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