implement-feature

implement-feature is a skill for Claude Code from Jamie-BitFlight/claude_skills. It costs 80 tokens per session (4,790 once invoked), scanned A, original, MIT.

An implementation workflow that runs the tasks in a feature plan, sends ready tasks to specialist agents, and tracks their progress and verification.

In plain words
What is it for?
Use it to execute an existing feature plan from start to finish.
Why use it?
It coordinates multi-step feature work so tasks, dependencies, and checks do not have to be managed manually.

Skill for Claude Code

Written for Claude Code: user-invocable in frontmatter. Also seen: mentions subagents; mentions Claude Code.

Part of the dh plugin — 70 skills, 29 agents shipped together

Good fit Use it to execute an existing feature plan from start to finish.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/jamie-bitflight/claude_skills/implement-feature
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.

Any agent
npx skills add Jamie-BitFlight/claude_skills --skill implement-feature
Clone the repo
git clone --depth 1 https://github.com/Jamie-BitFlight/claude_skills

Made for: Claude Code.

Or install dh, the plugin that ships this one along with the rest of its 70 skills, 29 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-feature

README.md
[![agentmods](https://agentmods.dev/badge/skills/jamie-bitflight/claude_skills/implement-feature/github.svg)](https://agentmods.dev/skills/jamie-bitflight/claude_skills/implement-feature)
Your own site
<a href="https://agentmods.dev/skills/jamie-bitflight/claude_skills/implement-feature"><img src="https://agentmods.dev/badge/skills/jamie-bitflight/claude_skills/implement-feature/github.svg" alt="Measured on agentmods" height="20"></a>

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.

agentmods 80×15 button for implement-feature

Your own site · 80×15
<a href="https://agentmods.dev/skills/jamie-bitflight/claude_skills/implement-feature"><img src="https://agentmods.dev/badge/skills/jamie-bitflight/claude_skills/implement-feature.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 80 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,790 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 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 $0.00080 $0.04790
Opus 5.5 $0.00032 $0.01916
Sonnet 5.5 $0.00016 $0.00958
Haiku 4.5 $0.00008 $0.00479

Measured 14d ago against content hash 39a4d8524e83, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

implement-feature 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 14d 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.

plugins/development-harness/skills/implement-feature/SKILL.md · 412 lines

How it starts

The opening of the file, as written. The whole thing — 412 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Implement Feature (SAM Workflow Execution)

This workflow continues from add-new-feature. It executes tasks from the selected provider until complete or blocked.

<plan_ref>$ARGUMENTS</plan_ref>

Load dh:dh-cli-usage before using <sam_cli/> or <dh_scripts/> below.


Where task state lives: every command that moves a task — ready, dispatch, settle, read, accept, reclaim, state, status — runs through the <sam_cli/> command above, against the work ledger. The sam_plan and sam_task MCP tools answer from the content store, which holds the plan's authored content and none of the attempt, lease, or outcome state this loop turns on, so this workflow reaches task state through the CLI.

MCP server availability: This skill uses mcp__plugin_dh_backlog__* tools for backlog items and artifacts. The server initializes in ~1–2 seconds after a session restart, and Claude Code handles connection waiting automatically. If a tool is unavailable, load dh:dh-cli-usage and follow its MCP connection check.

Resolve Plan

Treat the value from the plan_ref key as an opaque reference. Pass it unchanged to every SAM operation and delegation prompt.

Confirm the plan exists:

<sam_cli/> plan status --plan-address "{plan_ref}"

Put the Plan in the Ledger

The loop below opens an attempt per task, and an attempt is a ledger row. A plan authored through the SAM plan operations lives in the content store, where there is nothing to open — plan dispatch on such a plan answers no task {plan_ref}/{task_id} in the ledger and the wave cannot start. Bring the plan across before the first dispatch:

<sam_cli/> plan import --from content --plan-address "{plan_ref}"

This is safe to run when you are unsure: a plan the ledger already holds answers exists and changes nothing. Once it has run, every plan command naming this address reads and writes the ledger — including the status command above, which then reports the ledger's own columns.

Read the full file on GitHub · 412 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. 14d ago Changed 39a4d8524e83
  2. 1mo ago Changed · +104 lines · +5 tokens per session 045be11a5eea
  3. 1mo ago Changed · -27 lines 57758f4cfc79
  4. 1mo ago First seen · 335 lines · 75 tokens per session scan A 97838d6e20e6

Subscribe to this mod's changes

implement-feature is a skill published in the GitHub repository Jamie-BitFlight/claude_skills (67 stars, last pushed 4d ago), licensed MIT. It adds 80 tokens to every session and 4,790 once invoked, about $0.0003 per session on Opus 5.5. 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 2026-09-03.

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