implement

implement is a skill for Claude Code from chrisallenlane/claude-swe-workflows. It costs 36 tokens per session (3,434 once invoked), scanned A, original, MIT.

A coordinated development workflow covering requirements, planning, implementation, refactoring, testing, and documentation.

In plain words
What is it for?
Use it to take a clarified feature, bug, or change through specialist implementation and quality-checking stages.
Why use it?
It gives feature work a repeatable path and brings in extra planning when a change is large or crosses many parts of the system.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: model in frontmatter; mentions CLAUDE.md; mentions subagents.

Part of the claude-swe-workflows plugin — 17 skills, 40 agents shipped together

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/chrisallenlane/claude-swe-workflows/implement
Any agent
npx skills add chrisallenlane/claude-swe-workflows --skill implement
Clone the repo
git clone --depth 1 https://github.com/chrisallenlane/claude-swe-workflows

Made for: Claude Code.

Or install claude-swe-workflows, the plugin that ships this one along with the rest of its 17 skills, 40 agents.

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

README.md
[![agentmods](https://agentmods.dev/badge/skills/chrisallenlane/claude-swe-workflows/implement.svg)](https://agentmods.dev/skills/chrisallenlane/claude-swe-workflows/implement)
Your own site
<a href="https://agentmods.dev/skills/chrisallenlane/claude-swe-workflows/implement"><img src="https://agentmods.dev/badge/skills/chrisallenlane/claude-swe-workflows/implement.svg" alt="Measured on agentmods" height="20"></a>
Per session 36 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,434 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 5.1 $0.00036 $0.03434
Opus 5 $0.00018 $0.01717
Sonnet 5 $0.00007 $0.00687
Haiku 4.5 $0.00004 $0.00343

Measured 6d ago against content hash ad2a8038b9af, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, 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 6d 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/implement/SKILL.md · 384 lines

How it starts

The opening of the file, as written. The whole thing — 384 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Implement - Automated Development Workflow

Coordinates specialist agents through a complete development cycle: requirements -> planning -> implementation -> refactoring -> QA -> documentation.

Workflow

1. Receive and clarify requirements

Gather requirements from user:

  • What feature/bug/change is being requested?
  • What are the acceptance criteria?
  • Any constraints or preferences?

Ask clarifying questions if needed:

  • Ambiguous requirements
  • Missing information
  • Multiple valid approaches

Loop back to user until requirements are clear.

2. Planning (Conditional)

Assess task complexity:

After requirements are clear, assess whether planning is warranted:

Invoke swe-planner agent for complex tasks:

  • Large architectural changes (refactoring entire subsystems, technology migrations)
  • Cross-cutting concerns (multi-tenancy, i18n, audit logging)
  • Features touching many modules with unclear implementation path
  • Changes requiring database migrations and backward compatibility
  • Multiple valid approaches with significant trade-offs
  • Tasks where diving straight into implementation risks going down wrong path

Skip planning for simple tasks:

  • Single-file changes or small bug fixes
  • Straightforward CRUD operations
  • Simple refactorings (rename, extract method, remove duplication)
  • Clear, well-defined changes with obvious implementation path
  • Tasks that can be completed in <100 lines of code

Note: swe-planner has a safety valve to exit early if invoked for a task simpler than assessed. If planner reports "planning not needed," proceed directly to implementation with planner's brief recommendation.

If planning invoked:

  • swe-planner will produce implementation plan with ordered sub-tasks
  • Each sub-task includes: What/Why/How/Verify/Risks
  • Plan identifies risk areas (prototyping needs, user decisions, performance/security concerns)
  • Plan applies YAGNI, emphasizes starting small and working incrementally

Use plan to guide implementation:

  • Implementation agent should follow plan's sequencing
  • Implement one sub-task at a time
  • Verify each sub-task before moving to next
  • If plan identifies prototyping needs, create scratch repos in /tmp first

Read the full file on GitHub · 384 lines

Files

What ships with it

1 file 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. 6d ago First seen · 384 lines · 36 tokens per session scan A ad2a8038b9af

Subscribe to this mod's changes

implement is a skill published in the GitHub repository chrisallenlane/claude-swe-workflows (18 stars, last pushed 3mo ago), licensed MIT. It adds 36 tokens to every session and 3,434 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 2026-08-30.

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