Claude Code Agent Development
anthropics/claude-plugins-official
Explains how to write agents for Claude Code plugins: the markdown file with YAML frontmatter, trigger descriptions, model and color settings, and system prompt design.
A skill your agent uses when starting a new round (substrate-touching / fix-round / admin) to generate a complete handoff doc from scope + prior-round context.
$ npx skills add Arch1eSUN/Arcgentic --skill plan-round -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install Arch1eSUN/Arcgentic plan-round --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/Arch1eSUN/Arcgentic.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/plan-round .claude/skills/plan-round && rm -rf skills-srcUse ~/.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/
Install the "plan-round" agent skill from https://github.com/Arch1eSUN/Arcgentic/tree/main/skills/plan-round into .claude/skills/plan-round/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "plan-round", 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 install https://github.com/Arch1eSUN/Arcgentic/tree/main/skills/plan-roundType 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.
$ npx skills add Arch1eSUN/Arcgentic --skill plan-round -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install Arch1eSUN/Arcgentic plan-round --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/Arch1eSUN/Arcgentic.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/plan-round .agents/skills/plan-round && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "plan-round" agent skill from https://github.com/Arch1eSUN/Arcgentic/tree/main/skills/plan-round into .agents/skills/plan-round/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "plan-round", 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 Arch1eSUN/Arcgentic --skill plan-round -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install Arch1eSUN/Arcgentic plan-round --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/Arch1eSUN/Arcgentic.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/plan-round .cursor/skills/plan-round && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "plan-round" agent skill from https://github.com/Arch1eSUN/Arcgentic/tree/main/skills/plan-round into .cursor/skills/plan-round/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "plan-round", 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 https://github.com/Arch1eSUN/Arcgentic.git --path skills/plan-round--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add Arch1eSUN/Arcgentic --skill plan-round -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install Arch1eSUN/Arcgentic plan-round --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/Arch1eSUN/Arcgentic.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/plan-round .gemini/skills/plan-round && rm -rf skills-srcUse ~/.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/
Install the "plan-round" agent skill from https://github.com/Arch1eSUN/Arcgentic/tree/main/skills/plan-round into .gemini/skills/plan-round/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "plan-round", 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 Arch1eSUN/Arcgentic plan-roundInstalls 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 Arch1eSUN/Arcgentic --skill plan-round -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/Arch1eSUN/Arcgentic.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/plan-round .github/skills/plan-round && rm -rf skills-srcUse ~/.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/
Install the "plan-round" agent skill from https://github.com/Arch1eSUN/Arcgentic/tree/main/skills/plan-round into .github/skills/plan-round/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "plan-round", 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 Arch1eSUN/Arcgentic --skill plan-round -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install Arch1eSUN/Arcgentic plan-round --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/Arch1eSUN/Arcgentic.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/plan-round .opencode/skills/plan-round && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "plan-round" agent skill from https://github.com/Arch1eSUN/Arcgentic/tree/main/skills/plan-round into .opencode/skills/plan-round/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "plan-round", 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.
plan-roundA skill your agent uses when starting a new round (substrate-touching / fix-round / admin) to generate a complete handoff doc from scope + prior-round context.
Plan Round is an agent skill from Arch1eSUN/Arcgentic. Use when starting a new round (substrate-touching / fix-round / admin) to generate a complete handoff doc from scope + prior-round context. Dispatches the planner sub-agent and validates output before writing.
Its SKILL.md is about 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 Agent Workflows, covering Subagents. The repository describes itself as: Mechanical plan/dev/self-audit/external-audit gates for AI coding agents, with a configurable role-routing topology engine, an MCP-UI live status panel, and native-tooling Claude… The licence is MIT.
6 steps, taken from the first numbered list in SKILL.md.
Read from SKILL.md and the folder at commit 8539955. It shows what the files ask for, not the result of running them.
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.
Shell commands in SKILL.md call:
pipxpipFrom the folder's file list and the shell code blocks in SKILL.md.
No URLs in SKILL.md. Its commands use pipx and pip, which can reach the network depending on how they are called.
From URLs in SKILL.md, links to its own repository left out.
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Plan Round loads about 1k tokens when it runs. Until then it costs about 55 tokens; SKILL.md has 408 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.
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.
The full file from Arch1eSUN/Arcgentic at commit 8539955, republished under its MIT licence (© Arch1eSUN). 408 words, ~1,000 tokens.
.claude/skills/plan-round/SKILL.md (or your agent's skills folder).Generates a round handoff at docs/superpowers/plans/{YYYY-MM-DD}-{round_name}-handoff.md by
dispatching the planner sub-agent with a self-contained brief, then validating its output
against the corresponding handoff template (18 / 12 / 10 section).
/plan-round slash-commandRequires the arcgentic CLI installed (the Python toolkit):
pipx install arcgentic (post-v0.2.0 PyPI release)cd toolkit && pip install -e ".[dev]"The CLI runs in a subprocess; this markdown skill is the thin shim that invokes it.
For V1 rounds with external workflow inputs, first validate source/spec context:
arcgentic source-intake validate docs/source-intake/*.yaml
arcgentic capability-registry build <marketplace-catalog.json>
arcgentic spec-governance status <change-dir>For projects with project.session_mode already set, include the inherited mode
and dispatch order in the handoff instead of asking again:
arcgentic orchestrator-dispatch \
--round <round_name> \
--handoff <handoff-path> \
--mode <single-session|multi-session>Parse from $ARGUMENTS (passed by Claude Code):
round_name — e.g. "R10-L3-aletheia" or "R1.6.1"round_type — one of: substrate-touching | fix-round | entry-admin | close-admin | meta-admin-sweepprior_round_anchor — full 40-char SHA of prior round's last commitscope_description — optional 1-3 sentence scope (can be filled later in handoff)If any required input is missing, ASK the user before proceeding.
When invoked with all inputs:
Validate round_name matches the pattern R<phase>[.<round>[.<fix>]] or R<phase>-<name>.
Validate prior_round_anchor is a full 40-character hex SHA (NOT short).
Shell out to the CLI:
arcgentic plan-round-impl \
--round=<round_name> \
--type=<round_type> \
--anchor=<prior_round_anchor> \
--scope=<scope_description>Read the CLI's stdout — it contains either:
plan-round succeeded: wrote <path> + section_count + loc + (optional) warningsFAILED: <error> (exit code 1 or 2)Report to the user: handoff path, section count, dispatch order, and any warnings.
If validation failed (exit code 1 or 2): explain the failure + suggest a fix (re-run with correct anchor, etc.).
pipx install arcgentic or pip install -e toolkit/.--scope=...
OR open the handoff file at the reported path and fill the placeholders manually.agents/planner.md — the sub-agent dispatched by this skill (defines the planner's role + output contract)templates/handoff_18_section.md / handoff_12_section.md / handoff_10_section.md — section templatestoolkit/src/arcgentic/skills_impl/plan_round.py — Python algorithm (full validation logic + adapter dispatch)skills/source-intake/SKILL.md — V1 external source record workflowskills/spec-governance/SKILL.md — V1 spec artifact workflow© Arch1eSUN, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Just SKILL.md in skills/plan-round of Arch1eSUN/Arcgentic.
Open the folder on GitHubat commit 8539955
Plan Round 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 |
|---|---|---|---|---|---|---|
| Plan Round this skillArch1eSUN/Arcgentic | 286 | — | ~1k | Automated safety check: Pass | MIT | |
| Claude Code Agent Developmentanthropics/claude-plugins-official | 38k | 8 repos | ~2.8k | Automated safety check: Pass | Apache-2.0 | |
| Subagent Driven DevelopmentAsvarox/allkaraoke | 261 | 38 repos | ~1.2k | Automated safety check: Pass | None | |
| Dispatching Parallel Agentsultralisp/ultralisp | 258 | 41 repos | ~1.5k | Automated safety check: Pass | None | |
| Paseo Advisor Second Opiniongetpaseo/paseo | 20k | 1 repos | ~756 | Automated safety check: Pass | Custom licence | |
| Task Observerrebelytics/one-skill-to-rule-them-all | 3.2k | 1 repos | ~12k | Automated safety check: Pass | CC-BY-4.0 |
anthropics/claude-plugins-official
Explains how to write agents for Claude Code plugins: the markdown file with YAML frontmatter, trigger descriptions, model and color settings, and system prompt design.
Asvarox/allkaraoke
A skill your agent uses when executing implementation plans with independent tasks in the current session
ultralisp/ultralisp
A skill your agent uses when facing 2+ independent tasks that can be worked on without shared state or sequential dependencies
getpaseo/paseo
Launches one separate agent through Paseo to give a second opinion on the current task, with a self-contained briefing and no permission to edit files.
rebelytics/one-skill-to-rule-them-all
Monitors task execution for skill improvement opportunities.
openobserve/openobserve
Splits a change into planner, coder and independent reviewer roles: you confirm a spec, a subagent implements it, and a separate reviewer checks each round's local WIP commit.
Arch1eSUN/Arcgentic
External-audit role for arcgentic rounds. An agent skill from Arch1eSUN/Arcgentic.
Arch1eSUN/Arcgentic
Main-session orchestrator for arcgentic rounds. An agent skill from Arch1eSUN/Arcgentic.
Arch1eSUN/Arcgentic
Runs the mechanical quality gates that the arcgentic state machine requires for state transitions.
Arch1eSUN/Arcgentic
A skill your agent uses when the user mentions Arcgentic, or wants substantial AI-written code taken through a gated plan → development → self-audit → external audit workflow with role handoffs and…
Arch1eSUN/Arcgentic
A skill your agent uses when the user says Arcgentic, asks to use Arcgentic, or wants an idea taken through a complete plan → development → self-audit → external audit workflow in Codex.
Arch1eSUN/Arcgentic
A skill your agent uses when running Arcgentic V2 in Claude Code and fixed Planner, Developer, and Auditor role sessions must be coordinated through a broker.
Categories
A skill your agent uses when starting a new round (substrate-touching / fix-round / admin) to generate a complete handoff doc from scope + prior-round context. Plan Round is an agent skill from Arch1eSUN/Arcgentic. Use when starting a new round (substrate-touching / fix-round / admin) to generate a complete handoff doc from scope + prior-round context.
Plan Round fits situations like: starting a new round (substrate-touching / fix-round / admin) to generate a complete handoff doc from scope + prior-round context; tasks that involve Subagents.
Run `npx skills add Arch1eSUN/Arcgentic --skill plan-round -a claude-code`. Or copy the skill folder (skills/plan-round in Arch1eSUN/Arcgentic) into .claude/skills/plan-round in your project. Claude Code loads it when a task matches its description.
Run `npx skills add Arch1eSUN/Arcgentic --skill plan-round -a codex`. Or copy the skill folder (skills/plan-round in Arch1eSUN/Arcgentic) into .agents/skills/plan-round in your project. Codex loads it when a task matches its description.
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add Arch1eSUN/Arcgentic --skill plan-round -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/plan-round, .gemini/skills/plan-round, .github/skills/plan-round and .opencode/skills/plan-round in your project.
Going by SKILL.md and its folder, Plan Round needs the command-line tools its instructions call (pipx and pip). Our summary lists: Python 3.
SKILL.md contains no URLs. Its commands use pip, which can reach the network depending on how they are called. This is read from the text; nothing was executed.
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.
Plan Round is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
About 1k tokens (SKILL.md is roughly 4k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
Skills that share tags, products or a category with Plan Round: Claude Code Agent Development (anthropics/claude-plugins-official, 38k stars), Subagent Driven Development (Asvarox/allkaraoke, 261 stars), Dispatching Parallel Agents (ultralisp/ultralisp, 258 stars) and Paseo Advisor Second Opinion (getpaseo/paseo, 20k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Arch1eSUN (a GitHub user) maintains it in Arch1eSUN/Arcgentic, which has 286 GitHub stars. The repository holds 19 skills in this directory. The repository was last updated on October 2, 2026.
Source: Arch1eSUN/Arcgentic on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.