Agent skill

Implement

by Automattic in Automattic/simplenote-android

End-to-end implementation workflow: plan, implement, verify, commit, and open a draft PR.

GPL-2.0Auto-check passedTesting & QA

Install Implement

skills CLI

$ npx skills add Automattic/simplenote-android --skill implement -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI

$ gh skill install Automattic/simplenote-android implement --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy

$ git clone --depth 1 https://github.com/Automattic/simplenote-android.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/implement .claude/skills/implement && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Paste into Claude Code

Install the "implement" agent skill from https://github.com/Automattic/simplenote-android/tree/trunk/.agents/skills/implement into .claude/skills/implement/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "implement", then confirm the skill loads.

Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

$skill-installer

$skill-installer install https://github.com/Automattic/simplenote-android/tree/trunk/.agents/skills/implement

Type this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.

skills CLI

$ npx skills add Automattic/simplenote-android --skill implement -a codex

Project install goes to .agents/skills/; add -g for ~/.codex/skills/.

GitHub CLI

$ gh skill install Automattic/simplenote-android implement --agent codex

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/Automattic/simplenote-android.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.agents/skills/implement .agents/skills/implement && rm -rf skills-src

Use ~/.agents/skills/ instead of .agents/skills for a personal install.

Codex skills documentation · loads skills from .agents/skills/

Paste into Codex

Install the "implement" agent skill from https://github.com/Automattic/simplenote-android/tree/trunk/.agents/skills/implement into .agents/skills/implement/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "implement", then confirm the skill loads.

Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add Automattic/simplenote-android --skill implement -a cursor

Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.

GitHub CLI

$ gh skill install Automattic/simplenote-android implement --agent cursor

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/Automattic/simplenote-android.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.agents/skills/implement .cursor/skills/implement && rm -rf skills-src

Use ~/.cursor/skills/ instead of .cursor/skills for a personal install.

Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/

Paste into Cursor

Install the "implement" agent skill from https://github.com/Automattic/simplenote-android/tree/trunk/.agents/skills/implement into .cursor/skills/implement/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "implement", then confirm the skill loads.

Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

gemini skills install

$ gemini skills install https://github.com/Automattic/simplenote-android.git --path .agents/skills/implement

--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.

skills CLI

$ npx skills add Automattic/simplenote-android --skill implement -a gemini-cli

Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.

GitHub CLI

$ gh skill install Automattic/simplenote-android implement --agent gemini-cli

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/Automattic/simplenote-android.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.agents/skills/implement .gemini/skills/implement && rm -rf skills-src

Use ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.

Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/

Paste into Gemini CLI

Install the "implement" agent skill from https://github.com/Automattic/simplenote-android/tree/trunk/.agents/skills/implement into .gemini/skills/implement/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "implement", then confirm the skill loads.

Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

GitHub CLI

$ gh skill install Automattic/simplenote-android implement

Installs for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).

skills CLI

$ npx skills add Automattic/simplenote-android --skill implement -a github-copilot

Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.

Manual copy

$ git clone --depth 1 https://github.com/Automattic/simplenote-android.git skills-src && mkdir -p .github/skills && cp -r skills-src/.agents/skills/implement .github/skills/implement && rm -rf skills-src

Use ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.

GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/

Paste into GitHub Copilot

Install the "implement" agent skill from https://github.com/Automattic/simplenote-android/tree/trunk/.agents/skills/implement into .github/skills/implement/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "implement", then confirm the skill loads.

GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add Automattic/simplenote-android --skill implement -a opencode

OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.

GitHub CLI

$ gh skill install Automattic/simplenote-android implement --agent opencode

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/Automattic/simplenote-android.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.agents/skills/implement .opencode/skills/implement && rm -rf skills-src

Use ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.

OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/

Paste into OpenCode

Install the "implement" agent skill from https://github.com/Automattic/simplenote-android/tree/trunk/.agents/skills/implement into .opencode/skills/implement/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "implement", then confirm the skill loads.

OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

Facts

Skill name: implement
GitHub stars: 1.9k
Token cost: ~1.1k tokens
SKILL.md length: 478 words
Files: 1
Skills in repo: 1
Repo updated: Oct 5, 2026
First seen: Oct 7, 2026
Licence: GPL-2.0

At a glance

End-to-end implementation workflow: plan, implement, verify, commit, and open a draft PR.

Works in 5 steps: Plan (requires approval) → Implement → Verify → …
Asked to implement
SKILL.md covers Phase 1: Plan (requires…, Phase 2: Implement, Phase 3: Verify and Phase 4: Present Changes…, plus 1 more section
Calls git and gh

What it does

Implement is an agent skill from Automattic/simplenote-android. End-to-end implementation workflow: plan, implement, verify, commit, and open a draft PR. Use when asked to implement, fix, build, or work on something.

Its SKILL.md is about 1.1k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Testing & QA. The repository describes itself as: Simplenote for Android. The licence is GPL-2.0.

When your agent uses it

Asked to implement
Work on something

Example prompts

“/implement”

Workflow steps

5 steps, taken from the step headings in SKILL.md.

Plan (requires approval)
Implement
Verify
Present Changes (requires approval)
Commit and Draft PR

What it can do on your machine

Read from SKILL.md and the folder at commit cb2e255. It shows what the files ask for, not the result of running them.

Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
Shell commands in SKILL.md call:
- git
- gh
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md. Its commands use git and gh, which can reach the network depending on how they are called.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Implement loads about 1.1k tokens when it runs. Until then it costs about 41 tokens; SKILL.md has 478 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~41
When it runs · the whole SKILL.md, loaded when a task matches: ~1.1k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from Automattic/simplenote-android at commit cb2e255, republished under its GPL-2.0 licence (© Automattic). 478 words, ~1,097 tokens.

Download SKILL.mdSave it as .claude/skills/implement/SKILL.md (or your agent's skills folder).

name: implement
description: End-to-end implementation workflow: plan, implement, verify, commit, and open a draft PR. Use when asked to implement, fix, build, or work on something.

Implement Workflow

This skill handles the full lifecycle: plan -> implement -> verify -> commit -> draft PR.

Phase 1: Plan (requires approval)

Understand the request — Read the issue description, linked context, or user instructions.
Explore the codebase — Find relevant files, understand existing patterns, read tests.
Create an implementation plan:
- What files will be modified/created
- What the changes will do
- What edge cases to consider
- What tests to add or update
Present the plan and STOP — Wait for explicit user approval before proceeding.

Do NOT start coding until the plan is approved. If requirements are ambiguous, ask.

Phase 2: Implement

Execute the approved plan:

Follow existing code patterns and conventions in the repo
Keep changes minimal and focused — don't refactor unrelated code
Max line length: 120 characters (enforced by .editorconfig)
Use com.automattic.simplenote package conventions
Unit tests: Add or update tests covering new/changed logic. Follow existing test patterns (JUnit 4, Mockito, coroutine test utilities). If writing meaningful tests would require disproportionate effort (e.g., complex setup, heavy mocking of framework internals), skip but notify the developer explaining why.

Phase 3: Verify

Run verification checks and fix any failures. Iterate until all checks pass.

3a: Compile

bash

./gradlew Simplenote:assembleDebug

If other modules were changed, compile those too:

bash

./gradlew assembleDebug

3b: Lint

bash

./gradlew :Simplenote:lintDebug

Fix violations — prefer real fixes over suppression
Only suppress when it's a false positive and document why

3c: Unit Tests

bash

./gradlew :Simplenote:testDebugUnitTest

Or run specific tests related to the changes:

bash

./gradlew :Simplenote:testDebugUnitTest --tests "com.automattic.simplenote.SpecificTest" --info

Test rules:

NEVER weaken or remove assertions to make tests pass
NEVER modify production code just to pass a test without permission
Tests that pass only by not crashing are invalid — every test needs meaningful assertions
If a test won't pass after reasonable attempts: stop and ask

Show full SKILL.md (200 more words)Show less

3d: Fix Errors

If any step fails:

Analyze the error
Fix the issue
Re-run the failing check
Repeat until green

Phase 4: Present Changes (requires approval)

Show a summary of all changes made:

Files modified/created
Key behavioral changes
Test coverage

STOP and wait for user approval before committing.

Phase 5: Commit and Draft PR

Only proceed after explicit approval.

5a: Run Final Lint

bash

./gradlew :Simplenote:lintDebug

Fix any remaining issues.

5b: Inspect Changes

bash

git status
git diff --stat
git diff

5c: Plan Commits

Review the changes and determine if they should be split into multiple commits:

Independent logical units = separate commits
Bug fix + feature = separate commits
Formatting + logic = separate commits

For each commit, prepare:

Commit message: Imperative summary + brief body
Files: Paths to stage
Summary: What and why

Commit message format — use direct multi-line strings:

bash

git commit -m "Imperative summary

- Detail one
- Detail two
"

Rules:

NO co-author lines — NEVER add "Co-Authored-By" or AI attribution
Each commit should be cohesive and buildable
Use git add -p to split mixed concerns if needed

5d: Stage and Commit

bash

git add <specific files>
git commit -m "message"

5e: Push and Create Draft PR

bash

# Get the correct remote owner/repo
git remote get-url origin

# Push
git push -u origin HEAD

# Create draft PR
PAGER=cat gh pr create --draft --title "PR title" --body "$(cat <<'EOF'
### Fix
<description>

### Test
1. Step 1
2. Step 2

### Review
<review instructions>

### Release
<release notes statement>
EOF
)"

PR rules:

Title: short, under 70 characters
Body: follows the repo's PR template format (### Fix, ### Test, ### Review, ### Release)
Always create as draft
Target branch: trunk
Return the PR URL when done

Files

Just SKILL.md in .agents/skills/implement of Automattic/simplenote-android.

Open the folder on GitHubat commit cb2e255

Compare with similar skills

Implement next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Implement compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
Implement this skillAutomattic/simplenote-android	1.9k	—	~1.1k	Automated safety check: Pass	GPL-2.0	2 days ago
Web Application Testinganthropics/skills	180k	51 repos	~966	Automated safety check: Pass	Apache-2.0	2 days ago
Diagnosing Bugsfossasia/eventyay-interpretation	1.6k	31 repos	~2.1k	Automated safety check: Pass	Apache-2.0	2 days ago
TDDfossasia/eventyay-interpretation	1.6k	28 repos	~1.1k	Automated safety check: Pass	Apache-2.0	2 days ago
TDD WorkflowhellangleZ/burn-in-cceverywhere-ralph	112	11 repos	~2.4k	Automated safety check: Pass	None	8 mo ago
TDDsanity-io/sanity	6.4k	20 repos	~1k	Automated safety check: Pass	MIT	today

Similar skills

Web Application Testing
anthropics/skills
Official
Tests local web applications with Python Playwright scripts, checking frontend behavior, capturing screenshots and reading browser console logs.
180k GitHub starsUsed in 51 repos~966 tokens
Testing & QAAuto-check passed
Diagnosing Bugs
fossasia/eventyay-interpretation
Diagnosis loop for hard bugs and performance regressions. An agent skill from fossasia/eventyay-interpretation.
1.6k GitHub starsUsed in 31 repos~2.1k tokens
Testing & QAAuto-check passed
TDD
fossasia/eventyay-interpretation
Test-driven development. An agent skill from fossasia/eventyay-interpretation.
1.6k GitHub starsUsed in 28 repos~1.1k tokens
Testing & QAAuto-check passed
TDD Workflow
hellangleZ/burn-in-cceverywhere-ralph
A skill your agent uses when writing new features, fixing bugs, or refactoring code.
112 GitHub starsUsed in 11 repos~2.4k tokens
Testing & QAAuto-check passed
TDD
sanity-io/sanity
Official
Test-driven development with red-green-refactor loop. An agent skill from sanity-io/sanity.
6.4k GitHub starsUsed in 20 repos~1k tokens
Testing & QAAuto-check passed
Context Driven Development
Ibrahim-3d/orchestrator-supaconductor
A skill your agent uses when working with Conductor's context-driven development methodology, managing project context artifacts, or understanding the relationship between product.md, tech-stack.md…
380 GitHub starsUsed in 8 repos~2.9k tokens
Testing & QAAuto-check passed

Questions about Implement

What does Implement do?

End-to-end implementation workflow: plan, implement, verify, commit, and open a draft PR. Implement is an agent skill from Automattic/simplenote-android. End-to-end implementation workflow: plan, implement, verify, commit, and open a draft PR.

When should I use Implement?

Implement fits situations like: asked to implement; work on something.

How do I install Implement in Claude Code?

Run `npx skills add Automattic/simplenote-android --skill implement -a claude-code`. Or copy the skill folder (.agents/skills/implement in Automattic/simplenote-android) into .claude/skills/implement in your project. Claude Code loads it when a task matches its description.

How do I install Implement in Codex?

Run `npx skills add Automattic/simplenote-android --skill implement -a codex`. Or copy the skill folder (.agents/skills/implement in Automattic/simplenote-android) into .agents/skills/implement in your project. Codex loads it when a task matches its description.

Can I use Implement in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add Automattic/simplenote-android --skill implement -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/implement, .gemini/skills/implement, .github/skills/implement and .opencode/skills/implement in your project.

What does Implement need to run?

Going by SKILL.md and its folder, Implement needs the command-line tools its instructions call (git and gh).

Does Implement access the network?

SKILL.md contains no URLs. Its commands use git and gh, which can reach the network depending on how they are called. This is read from the text; nothing was executed.

Is Implement safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Implement use?

Implement is published under the GPL-2.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Implement use?

About 1.1k tokens (SKILL.md is roughly 4.4k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Implement?

Skills that share tags, products or a category with Implement: Web Application Testing (anthropics/skills, 180k stars), Diagnosing Bugs (fossasia/eventyay-interpretation, 1.6k stars), TDD (fossasia/eventyay-interpretation, 1.6k stars) and TDD Workflow (hellangleZ/burn-in-cceverywhere-ralph, 112 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Implement?

Automattic (a GitHub organization) maintains it in Automattic/simplenote-android, which has 1,910 GitHub stars. The repository was last updated on October 5, 2026.

Source: Automattic/simplenote-android on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.

Install Implement

Facts

At a glance

What it does

When your agent uses it

Example prompts

Workflow steps

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

Implement Workflow

Phase 1: Plan (requires approval)

Phase 2: Implement

Phase 3: Verify

3a: Compile

3b: Lint

3c: Unit Tests

3d: Fix Errors

Phase 4: Present Changes (requires approval)

Phase 5: Commit and Draft PR

5a: Run Final Lint

5b: Inspect Changes

5c: Plan Commits

5d: Stage and Commit

5e: Push and Create Draft PR

Files

Compare with similar skills

Similar skills

Web Application Testing

Diagnosing Bugs

TDD

TDD Workflow

TDD

Context Driven Development

Related

Questions about Implement