implement

A command that delegates a coding task or an existing plan to Claude Code with permission to edit the repository.

In plain words
What is it for?
Use it to start a new implementation, resume a plan, load a plan from a job or file, or run the work in the foreground or background.
Why use it?
It lets an external coding agent carry out planned implementation work instead of leaving the changes for you to make manually.

Command

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.

agentmods
npx agentmods add commands/tornikegomareli/claude-plugin-codex/implement
Clone the repo
git clone --depth 1 https://github.com/tornikegomareli/claude-plugin-codex
Per session 40 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 536 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00040 $0.00536
Opus 5 $0.00020 $0.00268
Sonnet 5 $0.00008 $0.00107
Haiku 4.5 $0.00004 $0.00054

Measured yesterday against content hash 5397cfac10e5, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

implement 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 yesterday.

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/claude/commands/implement.md · 43 lines

What it actually says

Delegate an implementation to Claude Code. Claude will edit files in this repository.

Raw slash-command arguments: $ARGUMENTS

Locating the companion script:

  • The companion script is scripts/claude-companion.mjs inside this plugin's root directory (the installed claude plugin directory that contains .codex-plugin/plugin.json).
  • Always invoke it with an absolute path.

Before running:

  • Tell the user this run will make code changes in the working tree.
  • If the working tree already has uncommitted changes, mention that briefly so the user can separate Claude's edits later.

Plan sources (mutually exclusive, pass through unchanged):

  • --resume-plan continues the latest @claude plan session with edit permissions. Prefer this when the user just ran @claude plan.
  • --from-plan <job-id> inlines the stored plan text from that job.
  • --plan-file <path> reads a plan from a file.
  • With none of these, the positional text is the implementation task itself.

Execution mode rules:

  • If the raw arguments include --wait, run in the foreground without asking.
  • If the raw arguments include --background, run with --background without asking.
  • Otherwise ask the user exactly once, in plain conversation, with "Run in background (Recommended)" first — implementations usually take a while.

Flow:

  • Run:
node "<plugin-root>/scripts/claude-companion.mjs" implement "$ARGUMENTS"
  • Return the output verbatim, exactly as-is.
  • After a completed foreground run, suggest @claude review --wait to review the changes. Do not run the review yourself.
  • For background runs, tell the user: "Claude is implementing in the background. Check @claude status for progress."
  • --full-auto gives Claude unrestricted tool access for the run; only pass it through when the user explicitly asked for it.

Sandbox requirements:

  • The companion spawns the claude CLI, which needs network access to reach the Anthropic API.
  • If the sandbox blocks the command or Claude reports a connection error, rerun the same shell command with escalated permissions and explain why in the justification.
  • Do not work around a sandbox denial by improvising your own review or edits; the command's value is Claude's independent output.
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. yesterday First seen · 43 lines · 40 tokens per session scan A 5397cfac10e5

Subscribe to this mod's changes

implement is a command published in the GitHub repository tornikegomareli/claude-plugin-codex (9 stars, last pushed 1mo ago), licensed MIT. It adds 40 tokens to every session and 536 once invoked, about $0.0002 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.