implement-feature

A guided command for implementing a software feature uses the project’s profile and context to plan, build, and verify a change. It is provided as the `/implement-feature` command.

In plain words
What is it for?
It is for discovering project context, creating a minimal implementation plan, making the required code changes, and checking that the feature works.
Why use it?
It gives feature work a defined sequence and verification points, reducing the chance of changing the wrong files or skipping checks.

Command for Claude Code

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 commands/apexiq/skillsmith/implement-feature
Clone the repo
git clone --depth 1 https://github.com/ApexIQ/skillsmith

Made for: Claude Code.

Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 539 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin 84% 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 $0.00000 $0.00539
Opus 5 $0.00000 $0.00269
Sonnet 5 $0.00000 $0.00108
Haiku 4.5 $0.00000 $0.00054

Measured 2d ago against content hash 68702c443e38, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, 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 2d 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

84% identical to align — 10 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.

.claude/commands/implement-feature.md · 28 lines

How it starts

The opening of the file, as written. The whole thing — 28 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Command: /implement-feature

This command is powered by a dynamic Skillsmith workflow bundle.

Goal

implement feature for library click, pytest, arch-business-logic, arch-ui, arch-unknown

Resources

Execution Plan

  1. Read .agent/project_profile.yaml and .agent/context/project-context.md.
  2. Confirm the requested goal against the current project stage and target tools.
  3. [AND] Discover stage: Read .agent/project_profile.yaml and .agent/context/project-context.md before taking action. Acceptance: Project profile and generated context are present or inferred without error.; The ranked skill list is deterministic for the current goal and profile..
  4. [OR] Plan stage: Turn the goal into a minimal patch plan with explicit verification checkpoints. Acceptance: The plan names concrete files, commands, or subsystems.; Every planned step has at least one verification check..
  5. [OR] Build stage: Implement the smallest coherent change needed for the goal. Acceptance: The patch changes only the files needed for the requested goal.; The requested behavior is present in the generated workflow output..
  6. [AND] Review stage: Inspect the changed files for correctness, regressions, and missing coverage. Acceptance: The review names concrete risks or confirms the change is safe.; The review output is ordered and actionable for the next agent..
  7. [AND] Test stage: Run the relevant automated tests for the changed workflow behavior. Acceptance: Targeted tests pass after the implementation change.; The failure mode is observable if the stage structure regresses..
  8. [AND] Ship stage: Make the workflow output usable as a release-grade handoff artifact. Acceptance: The generated workflow includes both stage structure and the legacy steps list.; Compose output remains stable across repeated runs with the same inputs..
  9. [AND] Reflect stage: Summarize what the evidence says about the current run. Acceptance: Reflection text is grounded in the run's actual feedback or retry state.; Any mode suggestion comes from the current evidence, not a dummy rule..
  10. Load the top relevant skills: notebooklm, javascript_testing_patterns, makepad_skills, context7_auto_research, loki_mode.
  11. Verification loop: run 1 verification pass before completion.
  12. Run the most relevant test or validation command before completion.

Read the full file on GitHub · 28 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. 2d ago First seen · 28 lines · 0 tokens per session scan A 68702c443e38

Subscribe to this mod's changes

implement-feature is a command published in the GitHub repository ApexIQ/skillsmith (5 stars, last pushed 5mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 539 tokens. A static security scan graded it A with 0 findings. It is 84% identical to align, differing in 10 lines, and is treated as a copy.