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Agent skill

Spk Mission Types

by spec-kitty in spec-kitty/spec-kitty

Explain Spec Kitty mission types, step contracts, action indices, and when to choose each mission workflow.

MITAuto-check passed

Install Spk Mission Types

skills CLI
$ npx skills add spec-kitty/spec-kitty --skill spk-mission-types -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install spec-kitty/spec-kitty spk-mission-types --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/spec-kitty/spec-kitty.git skills-src && mkdir -p .claude/skills && cp -r skills-src/src/charter/offering/skills/spk-mission-types .claude/skills/spk-mission-types && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
spk-mission-types
GitHub stars
1.7k
Token cost
~254 tokens
SKILL.md length
102 words
Files
1
Skills in repo
50
Repo updated
First seen
Licence
MIT

At a glance

Explain Spec Kitty mission types, step contracts, action indices, and when to choose each mission workflow.

  • Works in 3 steps: Identify the requested work: software… → Compare available mission types before… → Use the legacy spec-kitty-mission-system…
  • SKILL.md covers Workflow, Boundary and Built-In Types
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Spk Mission Types is an agent skill from spec-kitty/spec-kitty. Explain Spec Kitty mission types, step contracts, action indices, and when to choose each mission workflow.

Its SKILL.md is about 250 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

The repository describes itself as: Spec-Driven Development with organizational governance. Specs tell AI agents what to build; Charter governs how they build it. Git-native missions, enforceable workflows, and… The licence is MIT.

Example prompts

  • “/spk-mission-types”

Workflow steps

3 steps, taken from the first numbered list in SKILL.md.

  1. Identify the requested work: software change, standalone planning,
  2. Compare available mission types before creating new process.
  3. Use the legacy spec-kitty-mission-system skill for detailed step-contract,

What it can do on your machine

Read from SKILL.md and the folder at commit e533131. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md.

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Spk Mission Types loads about 254 tokens when it runs. Until then it costs about 31 tokens; SKILL.md has 102 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~31
When it runs · the whole SKILL.md, loaded when a task matches
~254

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from spec-kitty/spec-kitty at commit e533131, republished under its MIT licence (© spec-kitty). 102 words, ~254 tokens.

Download SKILL.mdSave it as .claude/skills/spk-mission-types/SKILL.md (or your agent's skills folder).
name
spk-mission-types
description
Explain Spec Kitty mission types, step contracts, action indices, and when to choose each mission workflow.

spk-mission-types

Use this skill when the user asks which kind of mission to run or how mission types differ.

Workflow

  1. Identify the requested work: software change, standalone planning, documentation, research, or custom/team workflow.
  2. Compare available mission types before creating new process.
  3. Use the legacy spec-kitty-mission-system skill for detailed step-contract, procedure, action-index, and template-resolution mechanics.

Boundary

Mission types define workflow behavior. Skills explain how to operate that behavior; they do not redefine the mission DAG.

Built-In Types

  • software-dev: default feature/change workflow with tasks and WP iteration.
  • research: evidence-gathering workflow before or during product decisions.
  • plan: planning-only workflow.
  • documentation: documentation-oriented workflow.

© spec-kitty, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in src/charter/offering/skills/spk-mission-types of spec-kitty/spec-kitty.

Open the folder on GitHubat commit e533131

Compare with similar skills

Spk Mission Types next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Spk Mission Types compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Spk Mission Types this skillspec-kitty/spec-kitty1.7k—~254Automated safety check: PassMIT
Contract Firstaffaan-m/ECC276k1 repos~2.4kAutomated safety check: PassMIT
Typed Service Contractsgoogle-labs-code/stitch-sdk1.8k—~1.4kAutomated safety check: PassApache-2.0
Rust Path Typesopeninterpreter/openinterpreter69k2 repos~605Automated safety check: PassApache-2.0
Python Type Safetywshobson/agents40k—~1.4kAutomated safety check: PassMIT
ActionsJetBrains/intellij-community21k—~341Automated safety check: PassCustom licence

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Questions about Spk Mission Types

What does Spk Mission Types do?

Explain Spec Kitty mission types, step contracts, action indices, and when to choose each mission workflow. Spk Mission Types is an agent skill from spec-kitty/spec-kitty. Explain Spec Kitty mission types, step contracts, action indices, and when to choose each mission workflow.

How do I install Spk Mission Types in Claude Code?

Run `npx skills add spec-kitty/spec-kitty --skill spk-mission-types -a claude-code`. Or copy the skill folder (src/charter/offering/skills/spk-mission-types in spec-kitty/spec-kitty) into .claude/skills/spk-mission-types in your project. Claude Code loads it when a task matches its description.

How do I install Spk Mission Types in Codex?

Run `npx skills add spec-kitty/spec-kitty --skill spk-mission-types -a codex`. Or copy the skill folder (src/charter/offering/skills/spk-mission-types in spec-kitty/spec-kitty) into .agents/skills/spk-mission-types in your project. Codex loads it when a task matches its description.

Can I use Spk Mission Types in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add spec-kitty/spec-kitty --skill spk-mission-types -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/spk-mission-types, .gemini/skills/spk-mission-types, .github/skills/spk-mission-types and .opencode/skills/spk-mission-types in your project.

What does Spk Mission Types need to run?

SKILL.md names no scripts, command-line tools or credentials: Spk Mission Types is instructions for the agent only.

Does Spk Mission Types access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Spk Mission Types safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Spk Mission Types use?

Spk Mission Types is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Spk Mission Types use?

About 254 tokens (SKILL.md is roughly 1k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Spk Mission Types?

Skills that share tags, products or a category with Spk Mission Types: Contract First (affaan-m/ECC, 276k stars), Typed Service Contracts (google-labs-code/stitch-sdk, 1.8k stars), Rust Path Types (openinterpreter/openinterpreter, 69k stars) and Python Type Safety (wshobson/agents, 40k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Spk Mission Types?

spec-kitty (a GitHub organization) maintains it in spec-kitty/spec-kitty, which has 1,678 GitHub stars. The repository holds 50 skills in this directory. The repository was last updated on October 9, 2026.

Source: spec-kitty/spec-kitty on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.