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Agent skill

agtx Execute Phase

by fynnfluegge in fynnfluegge/agtx

Carries out an approved plan for an agtx-managed task: implements the changes, runs tests, commits, writes a summary to .agtx/execute.md and then stops.

Apache-2.0Auto-check passedAgent Workflows

Install agtx Execute Phase

skills CLI
$ npx skills add fynnfluegge/agtx --skill agtx-execute -a claude-code

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

GitHub CLI
$ gh skill install fynnfluegge/agtx agtx-execute --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/fynnfluegge/agtx.git skills-src && mkdir -p .claude/skills && cp -r skills-src/plugins/agtx-terse/skills/agtx-execute .claude/skills/agtx-execute && 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
agtx-execute
GitHub stars
1.7k
Token cost
~439 tokens
SKILL.md length
222 words
Files
1
Skills in repo
7
Repo updated
First seen
Licence
Apache-2.0

At a glance

Carries out an approved plan for an agtx-managed task: implements the changes, runs tests, commits, writes a summary to .agtx/execute.md and then stops.

  • Works in 5 steps: Read .agtx/plan.md if it exists (skip… → Implement the changes → Run relevant tests to verify your changes → …
  • Implementing a plan that was already approved in an agtx task
  • SKILL.md covers Input, Instructions, Output and Changes, plus 3 more sections
  • Calls git

What it does

The skill covers the execution phase of a task managed by agtx. It reads the approved plan from .agtx/plan.md when that file exists, and otherwise fetches the task description through the agtx MCP get_task call using the task ID given as the argument. It then implements the changes, runs the relevant tests, fixes what they reveal, and commits all work with a short imperative message, checking that git status is clean because the worktree is deleted when the task completes.

When the work is done it writes .agtx/execute.md with a Changes section listing the files touched and what changed, and a Testing section describing how the work was verified. After that it stops: no new work beyond the plan, a fixed completion message, then it waits for instructions. Status updates are kept terse, one line each.

When your agent uses it

  • Implementing a plan that was already approved in an agtx task
  • Finishing a task in an agtx worktree with tests and a commit
  • Producing an execution summary file for handoff to review

Example prompts

  • “Run the execution phase for the agtx task I just approved.”
  • “Implement what is in .agtx/plan.md, run the tests and write the summary to .agtx/execute.md.”
  • “Execute the plan, commit your work and stop once the summary is written.”

Requirements

  • An agtx-managed task with .agtx/plan.md or access to the agtx MCP server
  • Git

Workflow steps

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

  1. Read .agtx/plan.md if it exists (skip get_task), otherwise fetch via get_task
  2. Implement the changes
  3. Run relevant tests to verify your changes
  4. Fix any issues found during testing
  5. Commit. git add -A, commit with a short imperative message, verify git status --short clean. Your worktree is deleted at task completion…

What it can do on your machine

Read from SKILL.md and the folder at commit 8ae6868. 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:

    • git

    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

agtx Execute Phase loads about 439 tokens when it runs. Until then it costs about 32 tokens; SKILL.md has 222 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~32
When it runs · the whole SKILL.md, loaded when a task matches
~439

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 fynnfluegge/agtx at commit 8ae6868, republished under its Apache-2.0 licence (© fynnfluegge). 222 words, ~439 tokens.

Download SKILL.mdSave it as .claude/skills/agtx-execute/SKILL.md (or your agent's skills folder).
name
agtx-execute
description
Execute an approved implementation plan. Implement the changes, then write a summary to .agtx/execute.md and stop.

Execution Phase

You are in the execution phase of an agtx-managed task.

Input

The argument to this command is a task ID.

If .agtx/plan.md exists in the current working directory, read it — it already contains the approved plan and all needed context. Do NOT call get_task.

If .agtx/plan.md does not exist, fetch the task description:

mcp__agtx__get_task(task_id: "<the id passed to this command>")

Instructions

  1. Read .agtx/plan.md if it exists (skip get_task), otherwise fetch via get_task
  2. Implement the changes
  3. Run relevant tests to verify your changes
  4. Fix any issues found during testing
  5. Commit. git add -A, commit with a short imperative message, verify git status --short clean. Your worktree is deleted at task completion — uncommitted work is destroyed and the merge is blocked. agtx's own files are already git-excluded, so add -A takes only your work.

Output

When implementation is complete, write a summary to .agtx/execute.md in the current working directory with these sections:

Changes

What files were modified/created and what was changed in each.

Testing

How you verified the changes — tests run, results, manual checks.

CRITICAL: Stop After Writing

After writing .agtx/execute.md (in the current working directory):

  • Do NOT start new work beyond the plan
  • Say: "Implementation complete. Summary written to .agtx/execute.md."
  • Wait for further instructions

Output Style

Terse. No pleasantries. Fragments OK. Short synonyms. Code exact. Status updates: one line. Pattern: [what] [why]. Done.

© fynnfluegge, Apache-2.0. 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 plugins/agtx-terse/skills/agtx-execute of fynnfluegge/agtx.

Open the folder on GitHubat commit 8ae6868

Compare with similar skills

agtx Execute Phase 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.

agtx Execute Phase compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
agtx Execute Phase this skillfynnfluegge/agtx1.7k—~439Automated safety check: PassApache-2.0
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Goprekuter/dryforge4101 repos~7.2kAutomated safety check: PassApache-2.0
Methodology AdvisorFlorianBruniaux/claude-code-ultimate-guide6.1k—~1.9kAutomated safety check: PassCC-BY-SA-4.0
Cline Pilotsickn33/agentic-awesome-skills47k1 repos~4.6kAutomated safety check: PassMIT
Spec-Driven DevelopmentLichAmnesia/lich-skills234—~3.5kAutomated safety check: PassMIT

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Works with

Categories

Questions about agtx Execute Phase

What does agtx Execute Phase do?

Carries out an approved plan for an agtx-managed task: implements the changes, runs tests, commits, writes a summary to .agtx/execute.md and then stops. The skill covers the execution phase of a task managed by agtx.md when that file exists, and otherwise fetches the task description through the agtx MCP get_task call using the task ID given as the argument.

When should I use agtx Execute Phase?

agtx Execute Phase fits situations like: implementing a plan that was already approved in an agtx task; finishing a task in an agtx worktree with tests and a commit; producing an execution summary file for handoff to review.

How do I install agtx Execute Phase in Claude Code?

Run `npx skills add fynnfluegge/agtx --skill agtx-execute -a claude-code`. Or copy the skill folder (plugins/agtx-terse/skills/agtx-execute in fynnfluegge/agtx) into .claude/skills/agtx-execute in your project. Claude Code loads it when a task matches its description.

How do I install agtx Execute Phase in Codex?

Run `npx skills add fynnfluegge/agtx --skill agtx-execute -a codex`. Or copy the skill folder (plugins/agtx-terse/skills/agtx-execute in fynnfluegge/agtx) into .agents/skills/agtx-execute in your project. Codex loads it when a task matches its description.

Can I use agtx Execute Phase 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 fynnfluegge/agtx --skill agtx-execute -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/agtx-execute, .gemini/skills/agtx-execute, .github/skills/agtx-execute and .opencode/skills/agtx-execute in your project.

What does agtx Execute Phase need to run?

Going by SKILL.md and its folder, agtx Execute Phase needs the command-line tools its instructions call (git). Our summary lists: An agtx-managed task with .agtx/plan.md or access to the agtx MCP server; Git.

Does agtx Execute Phase 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 agtx Execute Phase 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 agtx Execute Phase use?

agtx Execute Phase is published under the Apache-2.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does agtx Execute Phase use?

About 439 tokens (SKILL.md is roughly 1.8k 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 agtx Execute Phase?

Skills that share tags, products or a category with agtx Execute Phase: Ready (prekuter/dryforge, 410 stars), Go (prekuter/dryforge, 410 stars), Methodology Advisor (FlorianBruniaux/claude-code-ultimate-guide, 6.1k stars) and Cline Pilot (sickn33/agentic-awesome-skills, 47k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains agtx Execute Phase?

fynnfluegge (a GitHub user) maintains it in fynnfluegge/agtx, which has 1,708 GitHub stars. The repository holds 7 skills in this directory. The repository was last updated on October 2, 2026.

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