implement-plan

implement-plan is a command for Claude Code from davistroy/claude-marketplace. It costs 19 tokens per session (12,124 once invoked), scanned A, original, MIT.

A command that carries out an implementation plan by assigning work items to helper agents, running tests, updating documentation, and using a Git workflow. An implementation plan is a file that breaks a larger change into tasks.

In plain words
What is it for?
Use it to execute IMPLEMENTATION_PLAN.md or another plan file. Options control pull-request merging, pauses between phases, progress-file updates, and the plan's location.
Why use it?
It organizes long, multi-step coding work while keeping progress and verification tied to each task. It also supports pausing between phases and optionally merging the completed work.

Command for Claude Code

Written for Claude Code: allowed-tools in frontmatter. Also seen: reads .claude/ paths; mentions CLAUDE.md; mentions subagents.

Part of the personal-plugin plugin — 29 skills, 23 commands, 10 agents, 2 hooks shipped together

Good fit Use it to execute IMPLEMENTATION_PLAN.md or another plan file. Options control pull-request merging, pauses between phases, progress-file updates, and the plan's location.

Compare 6 commands from other repositories ↓
Install with agentmods
npx agentmods add commands/davistroy/claude-marketplace/implement-plan
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.

Clone the repo
git clone --depth 1 https://github.com/davistroy/claude-marketplace

Made for: Claude Code.

Or install personal-plugin, the plugin that ships this one along with the rest of its 29 skills, 23 commands, 10 agents, 2 hooks.

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 implement-plan

README.md
[![agentmods](https://agentmods.dev/badge/commands/davistroy/claude-marketplace/implement-plan.svg)](https://agentmods.dev/commands/davistroy/claude-marketplace/implement-plan)
Your own site
<a href="https://agentmods.dev/commands/davistroy/claude-marketplace/implement-plan"><img src="https://agentmods.dev/badge/commands/davistroy/claude-marketplace/implement-plan.svg" alt="Measured on agentmods" height="20"></a>
Per session 19 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 12,124 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 $0.00019 $0.12124
Opus 5 $0.00010 $0.06062
Sonnet 5 $0.00004 $0.02425
Haiku 4.5 $0.00002 $0.01212

Measured 7d ago against content hash a48c1120ccf7, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

implement-plan 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 7d 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.

plugins/personal-plugin/commands/implement-plan.md · 521 lines

How it starts

The opening of the file, as written. The whole thing — 521 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Implement Plan Command

Execute an IMPLEMENTATION_PLAN.md file by orchestrating subagents in a loop. Each work item is implemented, tested, documented, and committed by dedicated subagents while the main agent retains only minimal state — preserving context window capacity for long-running plans.

Input Validation

Optional Arguments:

Argument Default Description
--input <path> IMPLEMENTATION_PLAN.md Plan file path (absolute or relative to repo root). Use when the plan lives at a non-default location.
--auto-merge false Merge the PR and clean up the branch after all items complete. Without it, the command creates the PR and stops.
--pause-between-phases false Pause and ask for confirmation before starting each new phase.
--progress false Update PROGRESS.md even if absent. By default PROGRESS.md is touched only if it already exists (avoids duplicating git log).

Argument Resolution: If --input <path> was provided, use it (relative paths resolve against the repository root); otherwise default to IMPLEMENTATION_PLAN.md in the repository root. Store the result as PLAN_FILE and use it for ALL plan-file references below.

Prerequisites Validation: verify that PLAN_FILE exists at the resolved path; the current branch is NOT main or master; the working directory is clean (no uncommitted changes); and GitHub CLI (gh) is authenticated.

If the plan file is missing: output an error stating [PLAN_FILE] was not found, and suggest /plan-improvements (generate from codebase analysis), /create-plan (generate from requirements documents), or a custom path via /implement-plan --input <path-to-plan>; then stop.

If on main/master: output an error that the command cannot run on main/master, and instruct the user to create a feature branch first (git checkout -b feature/implementation); then stop.

If working directory is dirty: check if .implement-plan-state.json exists and contains an "in_progress" or "in_progress_batch" field.

  • If so (dirty state likely from an interrupted implementation session): present three options — (1) commit these changes and resume (as "[X.Y] interrupted work"), (2) stash these changes and resume, (3) abort to inspect manually first. Wait for the user's choice and execute accordingly before proceeding.
  • If not (no state file or no IN_PROGRESS item): output the standard error that uncommitted changes must be committed or stashed before running the command; then stop.

Read the full file on GitHub · 521 lines

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. 7d ago First seen · 521 lines · 19 tokens per session scan A a48c1120ccf7

Subscribe to this mod's changes

implement-plan is a command published in the GitHub repository davistroy/claude-marketplace (5 stars, last pushed 6d ago), licensed MIT. It adds 19 tokens to every session and 12,124 once invoked, about $0.0001 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 2026-08-31.