execute

execute is a skill for Claude Code from ABilenduke/copilot-developer. It costs 109 tokens per session (5,737 once invoked), scanned A, original, MIT.

A workflow for carrying out an existing software plan one step at a time on its own Git branch. It checks the work after each step, performs a deeper final review, and records progress in a dated journal.

In plain words
What is it for?
Use it to execute plans stored in files such as plan.md, design.md, or prd.md, run tests and linting, fix failures, test for unexpected problems, and prepare traceable changes.
Why use it?
It reduces the chance that a long implementation drifts from its plan or leaves failures unnoticed. The journal connects decisions, checks, fixes, and commits in one record.

Skill for Claude Code

Written for Claude Code: $ARGUMENTS substitution. Also seen: reads .claude/ paths.

Good fit Use it to execute plans stored in files such as plan.md, design.md, or prd.md, run tests and linting, fix failures, test for unexpected problems, and prepare traceable changes.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/abilenduke/copilot-developer/execute
Install

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.

Any agent
npx skills add ABilenduke/copilot-developer --skill execute
Clone the repo
git clone --depth 1 https://github.com/ABilenduke/copilot-developer

Made for: Claude Code.

Wrote 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.

agentmods badge for execute

README.md
[![agentmods](https://agentmods.dev/badge/skills/abilenduke/copilot-developer/execute/github.svg)](https://agentmods.dev/skills/abilenduke/copilot-developer/execute)
Your own site
<a href="https://agentmods.dev/skills/abilenduke/copilot-developer/execute"><img src="https://agentmods.dev/badge/skills/abilenduke/copilot-developer/execute/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.

agentmods 80×15 button for execute

Your own site · 80×15
<a href="https://agentmods.dev/skills/abilenduke/copilot-developer/execute"><img src="https://agentmods.dev/badge/skills/abilenduke/copilot-developer/execute.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 109 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 5,737 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00109 $0.05737
Opus 5.5 $0.00044 $0.02295
Sonnet 5.5 $0.00022 $0.01147
Haiku 4.5 $0.00011 $0.00574

Measured 1mo ago against content hash 458e2af70b67, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

execute 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.

.claude/skills/execute/SKILL.md · 606 lines

How it starts

The opening of the file, as written. The whole thing — 606 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Plan Executor Skill

Purpose

This skill takes a plan created by /plan and works through it step by step on a dedicated git branch. It uses a two-tier verification system:

  • Per-step ralph loops (fast) — run relevant tests and lint after each step, fix failures iteratively
  • Final ralph loop (deep) — a structured multi-phase review that goes beyond "do tests pass" into self-review, adversarial testing, and acceptance verification

A companion journal records everything — implementation details, verification results, fixes, and commit hashes.

First Steps

When this skill is invoked:

  1. Read templates/journal-template.md to understand the journal format
  2. Read examples/example-journal.md to see the expected quality
  3. Locate the plan:
    • If the user specified a path, use that
    • If not, check docs/features/ for available plans. Show what exists and ask which to execute.
    • If no plans exist, tell the user to run /plan first.
  4. Detect format (see Format Detection below)
  5. Run the Definition of Ready gate (see Definition of Ready below)
  6. Read all available story documents thoroughly. Understand every step AND every acceptance criterion.
  7. Identify verification stack: Examine the project to determine what's available:
    • Test runner (e.g. php artisan test, npm test, pytest)
    • Linter (e.g. phpstan, eslint, pint, ruff)
    • Type checker (e.g. vue-tsc, tsc --noEmit, mypy)
    • Any custom checks mentioned in the plan
    • Record these in the journal header as the verification stack
  8. Set up the git branch (see Git Workflow below)
  9. Update GitHub ticket status (new format only — see GitHub Integration below)
  10. Create the journal file alongside the plan
  11. Write the journal header (including "Documents available" status)
  12. Begin executing Step 1

Format Detection

Detect whether this is the new multi-file story format or the old monolithic iteration format:

Read the full file on GitHub · 606 lines

Files

What ships with it

2 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.

Changes

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.

  1. 1mo ago First seen · 606 lines · 109 tokens per session scan A 458e2af70b67

Subscribe to this mod's changes

execute is a skill published in the GitHub repository ABilenduke/copilot-developer (4 stars, last pushed 1mo ago), licensed MIT. It adds 109 tokens to every session and 5,737 once invoked, about $0.0004 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 2026-08-31.