implement

A task-execution workflow that carries out a prepared development plan one task at a time using separate worker agents.

In plain words
What is it for?
It is for implementing planned features from a selected work item, following its design and checklist, and saving implementation notes.
Why use it?
It keeps implementation organised and checks each stage before moving on, while recording what happened even if a task is unfinished.

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

Made for: Claude Code, Codex.

Per session 38 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,719 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 $0.00038 $0.01719
Opus 5 $0.00019 $0.00860
Sonnet 5 $0.00008 $0.00344
Haiku 4.5 $0.00004 $0.00172

Measured yesterday against content hash 273aca3ebca8, 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/dl/skills/implement/SKILL.md · 89 lines

How it starts

The opening of the file, as written. The whole thing — 89 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Execute each section in order. Copy the checklist and check off items as you complete them. Do not proceed past a Gate until verified.

Artifact: The worker writes an implementation note to .work/implementations/ — even if the task is incomplete.

Constraint: You are the foreman — you do not implement tasks yourself. A fresh-context worker subagent implements the selected task; you build its payload, verify its return, and own the plan checkboxes.

Find the feature

Check .work/active/ for marker files. If exactly one exists and no $ARGUMENTS provided, auto-select that feature's slug. If multiple markers exist, list them, offer to archive any with date older than 30 days to .work/archive/, then ask. Arguments always override.

Parse $ARGUMENTS as <slug>, <slug> <task-N>, or <slug> all. If the marker has stage: mini-spec, read the brainstorm artifact's ## Mini-Spec section as the spec — a single task (N = 1), no plan or design required; skip task picking. Otherwise find the plan in .work/plans/ and matching design in .work/designs/. Missing design → print "No design found. Run /dl:design first." and stop. No argument → list plan/design pairs; none: stop; one: confirm; many: ask to pick.

Task Progress:
- [ ] Find plan and design by slug
- [ ] Read plan and design; read completion state from the plan's checkboxes
- [ ] Pick task from args or ask — `all`: require clean tree, then loop per All mode
- [ ] Build the worker payload (task entry, design spec, rules, prior notes)
- [ ] Spawn the worker; receive its structured return
- [ ] Verify: note exists, STATUS complete, tests pass
- [ ] Check off the task in the plan (all mode: commit, then next task or halt)
- [ ] Gate: verify note with ls; update active marker
- [ ] Wrap up: summarize worker return(s), note deviations, suggest commit (all mode: end with forked review's findings)

Load

Read plan and design in full. The plan's - [ ] checkboxes are the authoritative completion state — task numbers are positional. Print the task list with status.

Read the full file on GitHub · 89 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. yesterday First seen · 89 lines · 38 tokens per session scan A 273aca3ebca8

Subscribe to this mod's changes

implement is a skill published in the GitHub repository minusblindfold/devloop (1 stars, last pushed 1mo ago), licensed MIT. It adds 38 tokens to every session and 1,719 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.

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