agy-implementer

agy-implementer is a skill for Claude Code from keli-wen/agy-staff. It costs 81 tokens per session (1,084 once invoked), scanned A, a copy of implementer, MIT.

A launcher for handing a well-defined coding task to Google's Antigravity command-line agent. That agent edits the current working folder and can carry out explicitly requested Git delivery steps.

In plain words
What is it for?
Delegating implementation work to Antigravity, including tasks that modify files in a Git repository.
Why use it?
It lets another coding agent implement a scoped task while the launcher collects its result and passes along the requested delivery instructions.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: mentions Codex; mentions OpenCode.

Needs its repository: it reads a path above its own folder, which exists only inside the repository. The line is Run this command **unsandboxed** — agy needs a localhost port and its OAuth token file, which harness sandboxes hide. In Codex, request escalated permissions fo.

Part of the agy plugin — 14 skills shipped together

Good fit Delegating implementation work to Antigravity, including tasks that modify files in a Git repository.

Compare 6 skills from other repositories ↓
Install

Getting it into your agent

It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.

Clone the repo
git clone --depth 1 https://github.com/keli-wen/agy-staff
agentmods
npx agentmods add skills/keli-wen/agy-staff/agy-implementer

Made for: Claude Code.

Or install agy, the plugin that ships this one along with the rest of its 14 skills.

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.

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README.md
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Your own site
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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.

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Your own site · 80×15
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Per session 81 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,084 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 86% copy Near-identical to another mod 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 $0.00081 $0.01084
Opus 5.5 $0.00032 $0.00434
Sonnet 5.5 $0.00016 $0.00217
Haiku 4.5 $0.00008 $0.00108

Measured 20d ago against content hash ac8abf3c7c07, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

agy-implementer 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 20d 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.

Origin

This is a copy

86% identical to implementer — 22 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

opencode-skills/agy-implementer/SKILL.md · 57 lines

How it starts

The opening of the file, as written. The whole thing — 57 lines — stays where its author put it; the contents beside it link to each section on GitHub.

agy implementer

Hand a coding task to the agy staffer. agy edits the real working tree under its unrestricted permission profile; the companion is a thin launcher and job collector. Pass the user's requested delivery through in the task text instead of doing Git work yourself.

Locating the companion

This skill file lives at <plugin-root>/opencode-skills/agy-implementer/SKILL.md; resolve the companion path relative to this skill directory:

node "<skill-dir>/../../companion/agy-companion.mjs" implement [flags] --prompt "task description"

Pass the user's task description verbatim via --prompt; use --prompt-file <path> or --stdin for long text.

[!IMPORTANT] Run this command unsandboxed — agy needs a localhost port and its OAuth token file, which harness sandboxes hide. In Codex, request escalated permissions for the command. Details: ../agy-jobs/references/troubleshooting.md. (The companion passes --dangerously-skip-permissions to agy in this mode — that is the unrestricted profile working as designed.)

Workspace and delivery

  • Inside a git repository, dirty workspaces are allowed. When git status --porcelain is not clean, the companion injects a bounded pre-run status summary into the implement prompt so agy treats those paths as user-owned context.
  • Outside a git repository the companion warns that agy's edits cannot be reviewed or rolled back via git, and proceeds. Relay that warning; there is no diff to fall back on.
  • By default, agy leaves a working-tree diff. If the user explicitly asks for a commit, push, or PR, include that request verbatim in the task text and let agy do that exact Git delivery.
  • After the run, surface agy's summary and the current workspace state. Do not add your own commit/PR step unless the user separately asks you to do it.

Collecting the result

The command returns a job id. Read ../agy-jobs/SKILL.md for result collection and recovery: dispatch, wait for the final result, then validate as needed. Do not proactively observe progress, read logs or inspect intermediate artifacts while running. Observe only when the user explicitly asks for progress; diagnose a failure or a result requiring intervention under the jobs protocol.

Read the full file on GitHub · 57 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. 20d ago Changed · -2 tokens per session ac8abf3c7c07
  2. 1mo ago Changed 44ba91539bc6
  3. 1mo ago Changed · -2 lines c13c2f56fca7
  4. 1mo ago First seen · 59 lines · 83 tokens per session scan A 27b15301a256

Subscribe to this mod's changes

agy-implementer is a skill published in the GitHub repository keli-wen/agy-staff (772 stars, last pushed yesterday), licensed MIT. It adds 81 tokens to every session and 1,084 once invoked, about $0.0003 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 86% identical to implementer, differing in 22 lines, and is treated as a copy.

Related

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