Long Task Work
suriyel/longtaskforagent
A skill your agent uses when feature-list.json exists - orchestrate features through the full TDD pipeline with quality gates and code review
Creates phase-based feature plans with quality gates and incremental delivery structure.
Install Feature Planner
$ npx skills add serendipity1004/cc-feature-implementer --skill feature-planner -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install serendipity1004/cc-feature-implementer feature-planner --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
Claude Code skills documentation · loads skills from .claude/skills/
Install the "feature-planner" agent skill from https://github.com/serendipity1004/cc-feature-implementer/tree/main into .claude/skills/feature-planner/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "feature-planner", 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.
$ npx skills add serendipity1004/cc-feature-implementer --skill feature-planner -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install serendipity1004/cc-feature-implementer feature-planner --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "feature-planner" agent skill from https://github.com/serendipity1004/cc-feature-implementer/tree/main into .agents/skills/feature-planner/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "feature-planner", 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.
$ npx skills add serendipity1004/cc-feature-implementer --skill feature-planner -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install serendipity1004/cc-feature-implementer feature-planner --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "feature-planner" agent skill from https://github.com/serendipity1004/cc-feature-implementer/tree/main into .cursor/skills/feature-planner/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "feature-planner", 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.
$ npx skills add serendipity1004/cc-feature-implementer --skill feature-planner -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install serendipity1004/cc-feature-implementer feature-planner --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "feature-planner" agent skill from https://github.com/serendipity1004/cc-feature-implementer/tree/main into .gemini/skills/feature-planner/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "feature-planner", 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.
$ gh skill install serendipity1004/cc-feature-implementer feature-plannerInstalls 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).
$ npx skills add serendipity1004/cc-feature-implementer --skill feature-planner -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "feature-planner" agent skill from https://github.com/serendipity1004/cc-feature-implementer/tree/main into .github/skills/feature-planner/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "feature-planner", 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.
$ npx skills add serendipity1004/cc-feature-implementer --skill feature-planner -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install serendipity1004/cc-feature-implementer feature-planner --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "feature-planner" agent skill from https://github.com/serendipity1004/cc-feature-implementer/tree/main into .opencode/skills/feature-planner/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "feature-planner", 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
feature-planner- GitHub stars
- 176
- Token cost
- ~2.4k tokens
- SKILL.md length
- 908 words
- Files
- 2
- Skills in repo
- 1
- Repo updated
- First seen
- Licence
- None found
At a glance
Creates phase-based feature plans with quality gates and incremental delivery structure.
- Works in 5 steps: Requirements Analysis → Phase Breakdown with TDD Integration → Plan Document Creation → …
- Planning features
- SKILL.md covers Purpose, Planning Workflow, Quality Gate Standards and Progress Tracking Protocol, plus 5 more sections
- Calls go, jest and pytest
What it does
Feature Planner is an agent skill from serendipity1004/cc-feature-implementer. Creates phase-based feature plans with quality gates and incremental delivery structure. Use when planning features, organizing work, breaking down tasks, creating roadmaps, or structuring development strategy. Keywords: plan, planning, phases, breakdown, strategy, roadmap, organize, structure, outline.
Its SKILL.md is about 2.4k tokens, which your agent loads only when the skill is triggered. The skill folder holds 1 other file (for example `plan-template.md`).
It sits in Testing & QA, covering Quality gates and Test-driven development.
When your agent uses it
- Planning features
- Organizing work
- Breaking down tasks
- Creating roadmaps
Example prompts
- “Use the feature-planner skill to create phase-based feature plans with quality gates and incremental delivery structure”
- “/feature-planner”
Requirements
- Python 3
Workflow steps
5 steps, taken from the step headings in SKILL.md.
- Requirements Analysis
- Phase Breakdown with TDD Integration
- Plan Document Creation
- User Approval
- Document Generation
What it can do on your machine
Read from SKILL.md and the folder at commit 171f59d. 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:
gojestpytestmvngradledotnetbundle
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
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
Feature Planner loads about 2.4k tokens when it runs. Until then it costs about 80 tokens; SKILL.md has 908 words of instructions outside code blocks.
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
Without a licence we can't republish the file, so here is its outline and opening line. It has 908 words (~2,394 tokens).
- name
- feature-planner
Files
SKILL.md and 1 other file in the repository root of serendipity1004/cc-feature-implementer.
- SKILL.md
- plan-template.md
Open the folder on GitHubat commit 171f59d
Compare with similar skills
Feature Planner 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.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Feature Planner this skillserendipity1004/cc-feature-implementer | 176 | — | ~2.4k | Automated safety check: Pass | None | |
| Long Task Worksuriyel/longtaskforagent | 177 | — | ~7.1k | Automated safety check: Notes | None | |
| Long Task Qualitysuriyel/longtaskforagent | 177 | — | ~934 | Automated safety check: Pass | None | |
| Shift Left Testingpetrkindlmann/qa-skills | 168 | — | ~6.7k | Automated safety check: Pass | MIT | |
| Handsontable Test Writing Disciplinehandsontable/handsontable | 22k | — | ~1.3k | Automated safety check: Pass | Custom licence | |
| Conductor Workflow Patternswshobson/agents | 40k | 9 repos | ~426 | Automated safety check: Pass | MIT |
Similar skills
Long Task Quality
suriyel/longtaskforagent
Use after TDD cycle in a long-task project - enforces coverage gate, mutation gate, and fresh verification evidence before marking features as passing
Shift Left Testing
petrkindlmann/qa-skills
Move quality earlier in the development lifecycle. An agent skill from petrkindlmann/qa-skills.
Handsontable Test Writing Discipline
handsontable/handsontable
Keeps tests honest: write them from the requirement, treat the code as the first suspect when a test is red, and refuse every way of faking a passing run.
Conductor Workflow Patterns
wshobson/agents
Use this skill when implementing tasks according to Conductor's TDD workflow, handling phase checkpoints, managing git commits for tasks, or understanding the…
TDD
pietheinstrengholt/rssmonster
Test-driven development. An agent skill from pietheinstrengholt/rssmonster.
Related
Categories
Questions about Feature Planner
What does Feature Planner do?
Creates phase-based feature plans with quality gates and incremental delivery structure. Feature Planner is an agent skill from serendipity1004/cc-feature-implementer. Creates phase-based feature plans with quality gates and incremental delivery structure.
When should I use Feature Planner?
Feature Planner fits situations like: planning features; organizing work; breaking down tasks; creating roadmaps.
How do I install Feature Planner in Claude Code?
Run `npx skills add serendipity1004/cc-feature-implementer --skill feature-planner -a claude-code`. Or copy the skill folder (the serendipity1004/cc-feature-implementer repository) into .claude/skills/feature-planner in your project. Claude Code loads it when a task matches its description.
How do I install Feature Planner in Codex?
Run `npx skills add serendipity1004/cc-feature-implementer --skill feature-planner -a codex`. Or copy the skill folder (the serendipity1004/cc-feature-implementer repository) into .agents/skills/feature-planner in your project. Codex loads it when a task matches its description.
Can I use Feature Planner 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 serendipity1004/cc-feature-implementer --skill feature-planner -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/feature-planner, .gemini/skills/feature-planner, .github/skills/feature-planner and .opencode/skills/feature-planner in your project.
What does Feature Planner need to run?
Going by SKILL.md and its folder, Feature Planner needs the command-line tools its instructions call (go, jest, pytest, mvn, gradle and dotnet). Our summary lists: Python 3.
Does Feature Planner access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is Feature Planner 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 Feature Planner use?
No licence was found for Feature Planner or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.
How many tokens does Feature Planner use?
About 2.4k tokens (SKILL.md is roughly 9.6k 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 Feature Planner?
Skills that share tags, products or a category with Feature Planner: Long Task Work (suriyel/longtaskforagent, 177 stars), Long Task Quality (suriyel/longtaskforagent, 177 stars), Shift Left Testing (petrkindlmann/qa-skills, 168 stars) and Handsontable Test Writing Discipline (handsontable/handsontable, 22k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Feature Planner?
serendipity1004 (a GitHub user) maintains it in serendipity1004/cc-feature-implementer, which has 176 GitHub stars. The repository was last updated on December 23, 2025.
Source: serendipity1004/cc-feature-implementer on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.