squid-implement-task

A command for implementing one or more approved software tasks through a repeated developer-and-tester process. It coordinates other agents, waits for tests to pass, and commits each completed task.

In plain words
What is it for?
Use it for ready-to-build tasks, task lists, or approved task plans, including work referenced by an issue number or task file. It first checks the project instructions and then manages the implementation and testing loop.
Why use it?
It adds a testing checkpoint before each task is marked complete and keeps implementation work tied to tracked task files or references. It also separates planning from the actual build work.

Skill for Claude CodeCodex

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 skills/iusztinpaul/squid/squid-implement-task
Any agent
npx skills add iusztinpaul/squid --skill squid-implement-task
Clone the repo
git clone --depth 1 https://github.com/iusztinpaul/squid

Made for: Claude Code, Codex.

Per session 86 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,653 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 $0.00086 $0.01653
Opus 5 $0.00043 $0.00826
Sonnet 5 $0.00017 $0.00331
Haiku 4.5 $0.00009 $0.00165

Measured 3d ago against content hash efc996644a9d, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

squid-implement-task 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 3d 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.

skills/squid-implement-task/SKILL.md · 122 lines

How it starts

The opening of the file, as written. The whole thing — 122 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Implement Task — inner SWE↔Tester loop (1 or N tasks)

Take a task (or a list of tasks / an approved Tasks Plan) and drive each one through the inner SWE → Tester loop, committing each task once it passes. This is the implementation core that /squid-implement-night runs; you can also run it standalone, on demand.

$ARGUMENTS is one of: a single task ref (NNN-slug / #N), a free-form task description, the feature's pending task files (tasks/<NNN>-*.md, status: pending), or several refs. If empty, ask the human what to implement.

You are the orchestrator — a MANAGER, not an implementer. You launch agents, enforce the Tester gate, and commit on green. You do NOT write code, run tests, or review the diff yourself beyond inspection (git diff, git log).

Read AGENTS.md first to confirm the active tracker mode (file or gh) and the project's stack + test commands.

Where this runs: in whatever working tree it's invoked in. When /squid-implement-night invokes it, it runs in the feature worktree /squid-plan created (the orchestrator passes Working directory: {path} to every agent). Standalone, it runs on your current branch. It does NOT create branches or worktrees — that's /squid-plan's job.

Critical rules:

  • Never rubber-stamp the Tester. Spot-check that each AC marked PASS has real evidence (test name, file:line, command output) and that the e2e adversarial section actually attempted break paths. Re-launch with concrete feedback if not.
  • One agent per task. Never bundle multiple tasks into one agent call.
  • Commit each task on PASS — do NOT push. Pushing, PR creation, acceptance, and review are /squid-review's job.

Step 1 — Resolve the task list

Build an ordered list of tasks from $ARGUMENTS:

  • Tracker ref(s) (NNN-slug / #N) → load each task's tasks/<NNN>-<slug>.md.
  • Approved Tasks Plan → the feature's tasks/<NNN>-*.md files with status: pending, in NNN order (gh mode: the feature's open issues).
  • Free-form description → a single ephemeral task; don't create a task file unless the human asks.
  • Empty → ask the human what to implement.

Read the full file on GitHub · 122 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. 3d ago First seen · 122 lines · 86 tokens per session scan A efc996644a9d

Subscribe to this mod's changes

squid-implement-task is a skill published in the GitHub repository iusztinpaul/squid (184 stars, last pushed 1mo ago), licensed Apache-2.0. It adds 86 tokens to every session and 1,653 once invoked, about $0.0004 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 2026-08-30.

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