Hook Ci Specialist
MUST INVOKE for moai-adk-go hook and CI work — shell-script hooks under .claude/hooks/moai/*.sh, settings.json hook wiring with $CLAUDE_PROJECT_DIR quoting and 5s timeout, GitHub Actions workflows under .github/workflows/, the template-neutrality CI guard, or the moai update namespace-protection contract. Covers adding a hook, adding a CI workflow, and wiring a command.
- Type
- Subagent
- Repository
- modu-ai/moai-adk
- GitHub stars
- 1.2k
- License
- Apache-2.0
- Repo last updated
- Sep 27, 2026
- Source file
- .claude/agents/harness/hook-ci-specialist.md
- Model
- opus
What Hook Ci Specialist is
Hook Ci Specialist is a subagent published in the modu-ai/moai-adk repository on GitHub, which has about 1.2k stars. The repository describes itself as: “Agentic development harness for Claude Code — SPEC-driven plan/run/sync, TRUST 5 quality gates, model+effort routing, and Claude×GLM multi-LLM cost control. Single Go binary, 16 languages, zero deps.”
A subagent is a specialist assistant that Claude can hand part of a task to. It is a markdown file whose frontmatter sets a name, a description that tells Claude when to delegate, and optionally the tools and model it may use; the body becomes the subagent's own system prompt.
Because a subagent works in its own context, it keeps the main conversation focused: Claude can send a narrow job, such as a review or a specialised analysis, to Hook Ci Specialist and get back a compact result.
It is set up to use these tools: Read, Write, Edit, Grep, Glob, Bash. Limiting tools is a good sign: the subagent can only do what those tools allow.
How to install Hook Ci Specialist
Claude Code
- Download hook-ci-specialist.md from the repository.
- Save it to ~/.claude/agents/ to use it in every project, or to .claude/agents/ inside one project to share it through version control.
- Claude Code watches these folders, so the subagent is usually available right away. Ask Claude to use it by name, or @-mention it to make sure it runs.
Claude Cowork
- Cowork loads subagents through plugins. If the repository is packaged as a plugin marketplace, add it under Customize → Plugins → Add marketplace and install the plugin that contains this subagent.
- Otherwise, bundle the file into your own plugin's agents/ folder and upload it from Customize → Plugins.
New to extending Cowork? Our plugins guide and Customize guide explain how skills, plugins, and connectors fit together.
Inside the source file
An excerpt from .claude/agents/harness/hook-ci-specialist.md, shared under the repository's Apache-2.0 license. Read the full file on GitHub.
v4 Manifest Entry
Role
This specialist owns Claude Code hook scripts, settings.json hook wiring, and GitHub Actions CI for moai-adk-go. It routes new hook/command artifact creation to builder-harness, spawns a per-spawn opus general-purpose agent for DevOps/CI implementation work (the canonical replacement for the archived devops domain-expert, per §C row #10), and never references any archived agent. It never prompts the user directly.
Delegates To
- builder-harness (artifact_type=hook | command | plugin) — for new hook wrapper scripts, slash commands, or plugin manifests. Invocation: "Use the builder-harness subagent with artifact_type=hook to create a new PostToolUse hook script for ."
- **Agent(subagent_type: "general-purpose", model: "opus", tools: "Read, Write, Edit, Bash, Grep, Glob", prompt: "...")** — for DevOps/CI implementation work (GitHub Actions workflows, deployment pipelines). This per-spawn pattern is the CANONICAL replacement for the archived devops domain-expert per .claude/rules/moai/workflow/archived-agent-rejection.md §C row #10. The prompt MUST inject domain-specific CI/CD instructions at delegation time (GitHub Actions patterns, deployment pipelines, infrastructure-as-code). Do NOT embed a literal archived-agent name in any agent file — only the per-spawn invocation.
Domain Guidance — moai-adk-go specifics
- Shell-script hooks only (CLAUDE.local.md §7): hooks are bash wrapper scripts at .claude/hooks/moai/handle- .sh, NOT Python. The wrapper reads stdin JSON and calls moai hook . Pattern: INPUT=$(cat); moai hook session-start <<< "$INPUT".
- settings.json hook wiring: every hook command MUST (a) quote $CLAUDE_PROJECT_DIR as "$CLAUDE_PROJECT_DIR", (b) use the full path to the wrapper script, (c) set timeout (MoAI default 5s; platform default 10min). Example: "command": "\"$CLAUDE_PROJECT_DIR/.claude/hooks/moai/handle-session-start.sh\"".
- Canonical hook events: SessionStart, SessionEnd, PreToolUse, PostToolUse, PreCompact, Notification, Stop, SubagentStop, TaskCompleted. Note: PreCommit is NOT a valid Claude Code hook event (use a git pre-commit hook or the Stop sync-phase gate instead).
- Three orchestrator-discipline hooks (per .claude/rules/moai/core/ agent-common-protocol.md § Hook Invocation Surface): status-transition-ownership.sh (PostToolUse on SPEC body edits), sync-phase-quality-gate.sh (Stop, self-gating), team-ac-verify.sh (TaskCompleted, dormant unless thorough + team mode). These hooks exit 2 to block and MUST NOT prompt the user directly (return a blocker report; the orchestrator owns the user-interaction channel) — the orchestrator translates their JSON output into a user-decision prompt round.
- CI workflows under .github/workflows/: the template-neutrality guard (template-neutrality-check.yaml) triggers on path change and enforces that internal/template/templates/** carries no internal-dev content (SPEC IDs, REQ tokens, commit SHAs, macOS-bias paths). The pre-PR contributor checklist is in CLAUDE.local.md §2.1.
- moai update namespace protection: hns-* skills (with the legacy harness- and my-harness- generations retained during the deprecation window), the .claude/agents/harness/ directory, and .moai/harness/ are USER-OWNED. moai update MUST NOT delete or modify them; backup before update is mandatory. Never leak hns-, harness-, or my-harness-* content into internal/template/templates/.
- Dev-only commands isolation (CLAUDE.local.md §21): 97-, 98-, 99-* slash commands are local moai-adk development only; never distribute via templates.
Before you install
- Read the whole file first. Skills, commands, and subagents are instructions Claude will follow, so make sure they match what you want.
- Check which tools, scripts, or MCP servers it uses. Local servers and scripts run with your permissions.
- Try it in a test project or a copy of your files before pointing it at real work.
- Pin the version you tested, and review changes before updating.
- Watch for instructions that fetch web content or run shell commands; those are where prompt injection risks start. See our prompt injection guide.
FAQ
What is Hook Ci Specialist?
Hook Ci Specialist is a subagent for Claude Code and Claude Cowork from the modu-ai/moai-adk repository on GitHub. MUST INVOKE for moai-adk-go hook and CI work — shell-script hooks under .claude/hooks/moai/*.sh, settings.json hook wiring with $CLAUDE_PROJECT_DIR quoting and 5s timeout, GitHub Actions workflows under .github/workflows/, the template-neutrality CI guard, or the moai update namespace-protection contract. Covers adding a hook, adding a CI workflow, and wiring a command.
How do I install Hook Ci Specialist in Claude Code?
Download hook-ci-specialist.md from the repository. Save it to ~/.claude/agents/ to use it in every project, or to .claude/agents/ inside one project to share it through version control. Claude Code watches these folders, so the subagent is usually available right away. Ask Claude to use it by name, or @-mention it to make sure it runs.
Can I use Hook Ci Specialist in Claude Cowork?
Cowork loads subagents through plugins. If the repository is packaged as a plugin marketplace, add it under Customize → Plugins → Add marketplace and install the plugin that contains this subagent. Otherwise, bundle the file into your own plugin's agents/ folder and upload it from Customize → Plugins.
Is Hook Ci Specialist safe to install?
It is a third-party community resource, not reviewed by Anthropic or this site. Read the source file first, check which tools and connectors it uses, and install only from sources you trust.
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