cc-agent

MCP server for spawning Claude Code agents in GitHub repos. Give Claude Code the ability to branch itself — clone a repo and kick off a sub-agent to work on it autonomously, with persistent state across MCP restarts.

Built by @Gonzih.

Quickstart

claude mcp add cc-agent -- npx @gonzih/cc-agent

Set one of:

CLAUDE_CODE_OAUTH_TOKEN=sk-ant-oat01-...   # OAuth token (recommended)
ANTHROPIC_API_KEY=sk-ant-api03-...         # API key

Restart Claude Code. You now have 13 new MCP tools.

MCP Tools

Tool	Description
spawn_agent	Clone a repo, optionally create a branch, run Claude Code on a task
get_job_status	Check status of a specific job
get_job_output	Stream output lines from a job (supports offset for tailing)
list_jobs	List all jobs with status, recent tool calls, and exit info
cancel_job	Kill a running job
send_message	Write a message to a running agent's stdin mid-task
cost_summary	Total USD cost across all jobs, broken down by repo
get_version	Return the running cc-agent version
create_plan	Spawn a dependency graph of agent jobs in one call
create_profile	Save a named spawn config for repeated use with {{variable}} templates
list_profiles	List all saved profiles
delete_profile	Delete a named profile
spawn_from_profile	Spawn a job from a saved profile with variable interpolation

spawn_agent parameters

Parameter	Type	Required	Description
repo_url	string	yes	Git repo to clone (HTTPS or SSH)
task	string	yes	Task prompt for Claude Code
branch	string	no	Existing branch to check out after clone
create_branch	string	no	New branch to create (e.g. feat/my-feature)
claude_token	string	no	Per-job token override
continue_session	boolean	no	Pass --continue to resume last Claude session in workdir
max_budget_usd	number	no	Spend cap in USD (default: 20)
session_id	string	no	Session ID from a prior job's sessionIdAfter — resumes that session
depends_on	string[]	no	Job IDs that must be done before this job starts (queued as pending)

create_plan parameters

Parameter	Type	Required	Description
goal	string	yes	High-level description of what this plan achieves
steps	array	yes	Ordered list of steps to execute

Each step in steps:

Field	Type	Required	Description
id	string	yes	Logical step ID (used for depends_on references within the plan)
repo_url	string	yes	Git repo to clone
task	string	yes	Task prompt for Claude Code
create_branch	string	no	New branch to create before running
depends_on	string[]	no	Step IDs from this plan that must complete first

create_profile parameters

Parameter	Type	Required	Description
name	string	yes	Profile name (alphanumeric, dashes, underscores)
repo_url	string	yes	Git repo to clone
task_template	string	yes	Task template — use {{varName}} for substitution
default_budget_usd	number	no	Default USD budget for jobs from this profile
branch	string	no	Branch to check out after cloning
description	string	no	Human-readable profile description

spawn_from_profile parameters

Parameter	Type	Required	Description
profile_name	string	yes	Name of the saved profile to use
vars	object	no	Variables to interpolate into the task template
task_override	string	no	Use this task instead of the profile template
branch_override	string	no	Override the profile's branch
budget_override	number	no	Override the profile's default budget

Usage examples

Basic agent

spawn_agent({
  repo_url: "https://github.com/yourorg/yourrepo",
  task: "Add error handling to all API endpoints. Open a PR when done.",
  create_branch: "feat/error-handling",
  max_budget_usd: 5
})
// → { job_id: "abc-123", status: "started" }

list_jobs()
// → [{ id: "abc-123", status: "running", recentTools: ["Read", "Edit", "Bash", ...] }]

get_job_output({ job_id: "abc-123", offset: 0 })
// → { lines: ["[cc-agent] Cloning...", "Reading src/api.ts...", ...], done: false }

send_message({ job_id: "abc-123", message: "Also update the tests." })
// → { sent: true }

cost_summary()
// → { totalJobs: 1, totalCostUsd: 1.23, byRepo: { "https://github.com/...": 1.23 } }

Multi-step plan with dependencies

create_plan({
  goal: "Refactor auth and update docs",
  steps: [
    {
      id: "refactor",
      repo_url: "https://github.com/yourorg/app",
      task: "Refactor auth middleware to use JWT. Open a PR.",
      create_branch: "feat/jwt-auth"
    },
    {
      id: "docs",
      repo_url: "https://github.com/yourorg/app",
      task: "Update README to document the new JWT auth flow.",
      create_branch: "docs/jwt-auth",
      depends_on: ["refactor"]
    }
  ]
})
// → { goal: "...", totalSteps: 2, steps: [{ stepId: "refactor", jobId: "abc-1", status: "cloning" }, { stepId: "docs", jobId: "abc-2", status: "pending" }] }

Profiles for repeated tasks

// Save once:
create_profile({
  name: "fix-issue",
  repo_url: "https://github.com/yourorg/app",
  task_template: "Fix issue #{{issue}}: {{title}}. Open a PR when done.",
  default_budget_usd: 5
})

// Use many times:
spawn_from_profile({
  profile_name: "fix-issue",
  vars: { issue: "42", title: "Login broken on mobile" }
})

Resume a prior session

// Get session ID from a completed job:
get_job_status({ job_id: "abc-123" })
// → { ..., session_id_after: "ses_xyz" }

// Resume it:
spawn_agent({
  repo_url: "https://github.com/yourorg/app",
  task: "Continue where you left off — finish the tests.",
  session_id: "ses_xyz"
})

Persistence

cc-agent v0.3.0+ stores all job state in Redis, which is auto-provisioned on startup — zero configuration needed.

Auto-provisioning

On startup, cc-agent tries to connect to Redis at localhost:6379. If unavailable:

1. Docker — runs docker run -d --name cc-agent-redis -p 6379:6379 --restart=unless-stopped redis:alpine
2. redis-server — if redis-server is on PATH, spawns it as a daemon
3. In-memory fallback — logs a warning and continues; jobs are not persisted across restarts

Once Redis is available, all job state, output, profiles, and plans survive MCP server restarts and are shared across all Claude Code sessions pointing at the same Redis instance.

Key schema

Key	Type	TTL	Contents
cca:job:<id>	String (JSON)	7 days	Full job record
cca:jobs:index	List	—	Job IDs, newest first (capped at 500)
cca:job:<id>:output	List	7 days	Output lines (one entry per line)
cca:plan:<id>	String (JSON)	30 days	Plan record with step→job mapping
cca:profile:<name>	String (JSON)	permanent	Profile config
cca:profiles:index	Set	permanent	All profile names

Disk fallback

When Redis is unavailable, cc-agent falls back to the original disk-based storage:

• .cc-agent/jobs.json — job metadata
• .cc-agent/jobs/<id>.log — per-job output log
• ~/.cc-agent/profiles.json — profiles

Existing disk profiles are automatically migrated to Redis on first startup with Redis available.

Job statuses

Status	Meaning
pending	Waiting for depends_on jobs to complete
cloning	Cloning the repo
running	Claude Code is running
done	Completed successfully
failed	Exited with an error (check error field)
cancelled	Cancelled by cancel_job

Tool call visibility

list_jobs returns recentTools — the last 10 tool names Claude called per job (e.g. ["Read", "Edit", "Bash", "Glob"]). get_job_output returns the full tool_calls array. This gives insight into what agents are actually doing during silent periods.

Budget control

Set max_budget_usd per job to cap spend. Default is $20. Claude Code is killed with SIGTERM when the budget is exhausted (exit code 143).

spawn_agent({ ..., max_budget_usd: 10 })  // up to $10 for this task
spawn_agent({ ..., max_budget_usd: 2  })  // quick/cheap task

Agent delegation pattern

The recommended mental model: you are the tech lead, agents are your team.

• Spawn agents for any task touching a codebase (multiple files, running tests, opening PRs)
• Do research, quick edits, and orchestration yourself
• Always end agent prompts with the terminal steps: gh pr create → gh pr merge → npm publish (or whatever ships the work)
• Monitor with list_jobs + get_job_output, respawn if budget runs out

# Standard agent task prompt ending:
gh pr create --title "feat: ..." --body "..." --base main
gh pr merge --squash --auto
npm version patch && npm publish   # if it's a library

MCP config (claude.json)

{
  "cc-agent": {
    "command": "npx",
    "args": ["@gonzih/cc-agent"],
    "env": {
      "CLAUDE_CODE_OAUTH_TOKEN": "sk-ant-oat01-..."
    }
  }
}

How it works

1. spawn_agent creates a job record (persisted to disk) and returns immediately with a job ID
2. In background: git clone --depth 1 <repo> into a temp dir
3. Optionally checks out an existing branch or creates a new one
4. Runs claude --print --output-format stream-json --verbose --dangerously-skip-permissions --max-budget-usd <N> <task>
5. Streams stdout/stderr into the job's output log (in memory + disk)
6. Tool calls are captured from the stream-JSON and stored in tool_calls[]
7. On exit: job marked done/failed, workdir cleaned up after 10 minutes
8. Jobs expire from memory after 1 hour (log file remains on disk)
9. Pending jobs are promoted automatically every 3 seconds when their dependencies complete

Environment variables

Variable	Description
CLAUDE_CODE_TOKEN	Claude OAuth token or Anthropic API key
CLAUDE_CODE_OAUTH_TOKEN	Claude OAuth token (alternative)
ANTHROPIC_API_KEY	Anthropic API key (alternative)

Requirements

• Node.js 18+
• claude CLI: npm install -g @anthropic-ai/claude-code
• Git

Related

• cc-tg — Claude Code Telegram bot by @Gonzih