Finishing a Development Branch
obra/superpowers
Walks the last step of a branch: confirm tests pass, detect the git environment, ask how to integrate, carry out your choice and clean up the worktree.
Prepare an authorized prosper task using current instructions, issue ownership, an own worktree, and relevant verification.
Install Start Task
$ npx skills add mattias800/prosper --skill start-task -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install mattias800/prosper start-task --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/mattias800/prosper.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.claude/skills/start-task .claude/skills/start-task && rm -rf skills-srcUse ~/.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/
Install the "start-task" agent skill from https://github.com/mattias800/prosper/tree/main/.claude/skills/start-task into .claude/skills/start-task/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "start-task", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/mattias800/prosper/tree/main/.claude/skills/start-taskType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add mattias800/prosper --skill start-task -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install mattias800/prosper start-task --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/mattias800/prosper.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.claude/skills/start-task .agents/skills/start-task && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "start-task" agent skill from https://github.com/mattias800/prosper/tree/main/.claude/skills/start-task into .agents/skills/start-task/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "start-task", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add mattias800/prosper --skill start-task -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install mattias800/prosper start-task --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/mattias800/prosper.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.claude/skills/start-task .cursor/skills/start-task && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "start-task" agent skill from https://github.com/mattias800/prosper/tree/main/.claude/skills/start-task into .cursor/skills/start-task/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "start-task", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/mattias800/prosper.git --path .claude/skills/start-task--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add mattias800/prosper --skill start-task -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install mattias800/prosper start-task --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/mattias800/prosper.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.claude/skills/start-task .gemini/skills/start-task && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "start-task" agent skill from https://github.com/mattias800/prosper/tree/main/.claude/skills/start-task into .gemini/skills/start-task/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "start-task", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install mattias800/prosper start-taskInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add mattias800/prosper --skill start-task -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/mattias800/prosper.git skills-src && mkdir -p .github/skills && cp -r skills-src/.claude/skills/start-task .github/skills/start-task && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "start-task" agent skill from https://github.com/mattias800/prosper/tree/main/.claude/skills/start-task into .github/skills/start-task/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "start-task", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add mattias800/prosper --skill start-task -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install mattias800/prosper start-task --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/mattias800/prosper.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.claude/skills/start-task .opencode/skills/start-task && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "start-task" agent skill from https://github.com/mattias800/prosper/tree/main/.claude/skills/start-task into .opencode/skills/start-task/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "start-task", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
start-task- GitHub stars
- 182
- Token cost
- ~661 tokens
- SKILL.md length
- 329 words
- Files
- 1
- Skills in repo
- 3
- Repo updated
- First seen
- Licence
- None found
At a glance
Prepare an authorized prosper task using current instructions, issue ownership, an own worktree, and relevant verification.
- Works in 9 steps: Read and verify the charter. Read… → Check ownership for issue work. Read the… → Claim when appropriate and authorized.… → …
- Tasks that involve Git worktrees
- Calls git and python3
What it does
Start Task is an agent skill from mattias800/prosper. Prepare an authorized prosper task using current instructions, issue ownership, an own worktree, and relevant verification.
Its SKILL.md is about 660 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
It sits in Development, covering Git worktrees. The repository describes itself as: A user-space PlayStation 5 to PC compatibility layer for Linux, Windows, and macOS.
When your agent uses it
- Tasks that involve Git worktrees
Example prompts
- “/start-task”
Requirements
- Python 3
Workflow steps
9 steps, taken from the first numbered list in SKILL.md.
- Read and verify the charter. Read CLAUDE.md, LOCAL.md if present, and CONTRIBUTING.md; fetch in your own worktree, then run python3…
- Check ownership for issue work. Read the assigned tracker and current comments. Re-verify the defect on current main; check in-progress…
- Claim when appropriate and authorized. Follow CLAUDE.md's claim protocol; re-read comments for a race. Push an owned branch early only…
- Own worktree, never the shared checkout
- Read before hypothesising. The applicable nested AGENTS.md, the relevant status doc, and its ## Ruled out section. Game work starts with…
- Plan to the scope. The PR template headings can help; a small change needs only its problem, behavior, and relevant verification.
- Relevant baseline. Reuse applicable author evidence. For behavior changes, run only needed focused checks in an owned build when execution…
- Regressions come with behavior changes. Add or extend a meaningful test that fails without the fix; document nonbehavioral scope and…
- Finish within authority. Merge only when the user or task explicitly authorizes it and the charter's review and verification requirements…
What it can do on your machine
Read from SKILL.md and the folder at commit 643ad45. 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
Shell commands in SKILL.md call:
gitpython3
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md. Its commands use git, which can reach the network depending on how they are called.
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
Start Task loads about 661 tokens when it runs. Until then it costs about 34 tokens; SKILL.md has 329 words of instructions outside code blocks.
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
Without a licence we can't republish the file, so here is its outline and opening line. It has 329 words (~661 tokens).
“Apply the steps relevant to the assigned task. This skill does not authorize publishing, pushing, merging, or running workloads; preserve the task's existing authority and resource coordination.”
- name
- start-task
Files
Just SKILL.md in .claude/skills/start-task of mattias800/prosper.
Open the folder on GitHubat commit 643ad45
Compare with similar skills
Start Task 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.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Start Task this skillmattias800/prosper | 182 | — | ~661 | Automated safety check: Pass | None | |
| Finishing a Development Branchobra/superpowers | 297k | 5 repos | ~1.9k | Automated safety check: Pass | MIT | |
| Migrate Core Code to Submodulestinyhumansai/openhuman | 42k | — | ~2.6k | Automated safety check: Pass | GPL-3.0 | |
| Finishing A Development Branchfarm-fe/farm | 5.6k | 34 repos | ~1.8k | Automated safety check: Pass | MIT | |
| Git Worktree Cleanuplobehub/lobehub | 83k | — | ~2.8k | Automated safety check: Pass | Custom licence | |
| Keep Codex Fastvibeforge1111/keep-codex-fast | 1.6k | — | ~3.1k | Automated safety check: Pass | MIT |
Similar skills
Migrate Core Code to Submodules
tinyhumansai/openhuman
Plans and carries out moving non-host-specific code and its tests from the OpenHuman core into vendored tiny submodule libraries, then releases the submodule and re-pins the host.
Finishing A Development Branch
farm-fe/farm
A skill your agent uses when implementation is complete, all tests pass, and you need to decide how to integrate the work - guides completion of development work by presenting structured options for…
Git Worktree Cleanup
lobehub/lobehub
Audits stale Git worktrees and branches with a bundled script, classifies each one, and deletes only after you approve the exact candidates.
Keep Codex Fast
vibeforge1111/keep-codex-fast
A skill your agent uses when Codex feels slow or bloated, when local sessions/logs/worktrees/config have grown over time, or when a user wants safe maintenance for Codex Desktop/CLI state.
Pre-Release PR Triage
jamiepine/voicebox
Sorts a backlog of open pull requests into must-merge, candidate, superseded and deferred, writes a triage doc and works the merge loop before a release.
More from mattias800/prosper
Implement Hle Function
mattias800/prosper
Implement or fix a reimplemented Sony library function (HLE) in prosper, test-first.
Perf Change
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Make, measure and land a prosper performance change - a switch for the A/B, a same-binary A/B on reference workloads, and a recorded verdict either way.
Related
Categories
Questions about Start Task
What does Start Task do?
Prepare an authorized prosper task using current instructions, issue ownership, an own worktree, and relevant verification. Start Task is an agent skill from mattias800/prosper. Prepare an authorized prosper task using current instructions, issue ownership, an own worktree, and relevant verification.
When should I use Start Task?
Start Task fits situations like: tasks that involve Git worktrees.
How do I install Start Task in Claude Code?
Run `npx skills add mattias800/prosper --skill start-task -a claude-code`. Or copy the skill folder (.claude/skills/start-task in mattias800/prosper) into .claude/skills/start-task in your project. Claude Code loads it when a task matches its description.
How do I install Start Task in Codex?
Run `npx skills add mattias800/prosper --skill start-task -a codex`. Or copy the skill folder (.claude/skills/start-task in mattias800/prosper) into .agents/skills/start-task in your project. Codex loads it when a task matches its description.
Can I use Start Task 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 mattias800/prosper --skill start-task -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/start-task, .gemini/skills/start-task, .github/skills/start-task and .opencode/skills/start-task in your project.
What does Start Task need to run?
Going by SKILL.md and its folder, Start Task needs the command-line tools its instructions call (git and python3). Our summary lists: Python 3.
Does Start Task access the network?
SKILL.md contains no URLs. Its commands use git, which can reach the network depending on how they are called. This is read from the text; nothing was executed.
Is Start Task 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 Start Task use?
No licence was found for Start Task or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.
How many tokens does Start Task use?
About 661 tokens (SKILL.md is roughly 2.6k 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 Start Task?
Skills that share tags, products or a category with Start Task: Finishing a Development Branch (obra/superpowers, 297k stars), Migrate Core Code to Submodules (tinyhumansai/openhuman, 42k stars), Finishing A Development Branch (farm-fe/farm, 5.6k stars) and Git Worktree Cleanup (lobehub/lobehub, 83k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Start Task?
mattias800 (a GitHub user) maintains it in mattias800/prosper, which has 182 GitHub stars. The repository holds 3 skills in this directory. The repository was last updated on October 9, 2026.
Source: mattias800/prosper on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.