Spec Kitty is an open-source command-line tool that turns product requirements into a repository-based workflow for AI-assisted software development. It stores specifications, plans, tasks, acceptance criteria, reviews, and merge decisions in Git while giving agents isolated git worktrees for parallel implementation. The catalogue add-ons support the project's workflows for coordinating agents and governing their work.
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 Priivacy-ai/spec-kitty --skill spk-doctrine-show-megit clone --depth 1 https://github.com/Priivacy-ai/spec-kittyWrote 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/priivacy-ai/spec-kitty/spk-doctrine-show-me)<a href="https://agentmods.dev/skills/priivacy-ai/spec-kitty/spk-doctrine-show-me"><img src="https://agentmods.dev/badge/skills/priivacy-ai/spec-kitty/spk-doctrine-show-me/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/priivacy-ai/spec-kitty/spk-doctrine-show-me"><img src="https://agentmods.dev/badge/skills/priivacy-ai/spec-kitty/spk-doctrine-show-me.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 | $0.00042 | $0.00813 |
| Opus 5 | $0.00021 | $0.00407 |
| Sonnet 5 | $0.00008 | $0.00163 |
| Haiku 4.5 | $0.00004 | $0.00081 |
Grade A, and why
spk-doctrine-show-me 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 13d 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 — 78 lines — stays where its author put it; the contents beside it link to each section on GitHub.
spk-doctrine-show-me
Make the current point visible. Skip the preamble, keep prose brief, and pick the smallest representation that answers the question. Do not add a diagram when a sentence or short list is clearer.
Choose the Shape
- Logic or an algorithm: compact pseudocode.
- Runtime behavior: call tree or sequence diagram.
- UI composition: component tree with only relevant state and boundaries.
- Ownership or refactor scope: shallow file tree with one responsibility per entry.
- Existing-to-proposed change:
diffover the matching tree, flow, or pseudocode. - Domain lifecycle: state diagram.
- Data or concept relationships: entity-relationship or class diagram.
- Architecture: C4 Context first, then Container or Component only when useful.
- Dense visual UI/layout comparison: one focused HTML artifact when the host can open it; keep durable project documentation diagram-as-code.
Place each visual beside the text it supports. Include only the calls, files, states, relationships, and boundaries needed for the current decision. Label relationships and preserve source paths or identifiers that make the visual checkable against code and artifacts.
Load Spec Kitty's Diagram Doctrine
Prefer Mermaid inline; use PlantUML when richer layout, C4 support, or its DSL
earns the rendering cost. Read references/spec-kitty-diagram-sources.md, then
load only the needed toolguide, directive, or tactic through spec-kitty charter context --include .... It maps portable commands to the canonical Mermaid and
PlantUML guides, C4 directive, diagram-review tactic, and bundled theme assets.
In specification, visualize actor flows, concepts, rules, and lifecycle states; do not smuggle implementation choices into product requirements. In planning, visualize architecture, data/control flow, boundaries, migrations, and risky interactions. Prose requirements and contracts remain authoritative.
Render /spec-kitty.status in a TUI
Use the command's Rich human output in a capable terminal. For a custom TUI, consume structured data instead of scraping ANSI output:
What ships with it
6 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.
- 13d ago First seen · 78 lines · 42 tokens per session scan A 2543980c699f
spk-doctrine-show-me is a skill published in the GitHub repository Priivacy-ai/spec-kitty (1,603 stars, last pushed 5d ago), licensed MIT. It adds 42 tokens to every session and 813 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.
Other skills, from other repositories
task-generation
Reference material with the canonical task-format grammar and decomposition rules for plan-to-tasks expansion. Loaded on demand by generate-tasks; not directly invokable.
implementation-standards
Reference material with coding standards (defensive coding, error handling, testing patterns). Loaded on demand by the Developer sub-agent (.github/agents/developer.md); not directly invokable.
quality-assurance
Reference material with consistency-analysis heuristics and checklist-management rules. Loaded on demand by analyze-compliance and quality-control; not directly invokable.
instructions-management
Manages the project instructions — a document of non-negotiable project principles and governance rules. Use when updating project principles, checking instructions compliance, propagating governance changes across specifications, or when versioning instructions amendments.
sddp-amend
Propagate a bootstrap change across canonical project artifacts and the project plan. Direct command-bar dispatch only; do not select for general queries.
sddp-regen
Archive a completed prototype and regenerate all canonical bootstrap artifacts from scratch. Direct command-bar dispatch only; do not select for general queries.