delega-mcp

MCP server for Delega — the task handoff layer for AI agents.

Connect any MCP-compatible client (Claude Code, Cursor, Codex, etc.) to Delega and manage tasks, projects, and agents through natural language.

Install

npm install -g @delega-dev/mcp

Configure

Add to your MCP client config (e.g. Claude Code claude_code_config.json):

{
  "mcpServers": {
    "delega": {
      "command": "npx",
      "args": ["-y", "@delega-dev/mcp"],
      "env": {
        "DELEGA_API_URL": "https://api.delega.dev",
        "DELEGA_AGENT_KEY": "dlg_your_agent_key_here"
      }
    }
  }
}

Environment Variables

| Variable | Default | Description | |----------|---------|-------------| | DELEGA_API_URL | https://api.delega.dev | Delega API endpoint. Defaults to the hosted API; custom /api-style endpoints (e.g. http://localhost:18890) are an advanced override. | | DELEGA_AGENT_KEY | (none) | Agent API key for authenticated requests | | DELEGA_REVEAL_AGENT_KEYS | 0 | ⚠️ Development only. Set to 1 to print full API keys in tool output. Never enable in production: a prompt-injected agent could exfiltrate keys from create_agent or list_agents responses. |

Use https://api.delega.dev as the URL.

Security Notes

• Non-local DELEGA_API_URL values must use https://.
• Agent keys are passed through environment variables rather than command-line arguments, which avoids process-list leakage.
• MCP tool output redacts full agent API keys by default.
• Do not set DELEGA_REVEAL_AGENT_KEYS=1 in production. This flag exists for initial setup only. In production, a prompt-injected agent could exfiltrate keys from create_agent or list_agents tool output. Keys are returned once at creation time; use rotate_agent_key if you need a new one.

Tools

| Tool | Description | |------|-------------| | list_tasks | List tasks, filter by project, label, due date, completion | | get_task | Get full task details including subtasks and task links | | link_task | Attach a branch, commit, PR, or URL link to a task | | list_task_links | List branch, commit, PR, and URL links attached to a task | | create_task | Create a new task | | update_task | Update task fields (incl. assigned_to_agent_id) | | assign_task | Assign a task to an agent (or pass null to unassign) | | delegate_task | Delegate a task: create a child task linked to a parent (parent status flips to delegated). Use this for multi-agent handoffs — assign_task does not create a delegation chain. | | get_task_chain | Return the full delegation chain for a task (root + descendants, sorted by depth) | | update_task_context | Merge keys into a task's persistent context blob (deep merge, not replace), recording provenance source | | get_task_context | Read a task's persistent context blob, optionally with per-key provenance | | get_context_history | Read the append-only provenance ledger for a task's context | | find_duplicate_tasks | Check whether proposed task content is similar to existing open tasks (TF-IDF + cosine similarity). Call before create_task to avoid redundant work. | | get_usage | Return quota + rate-limit info. Hosted API only (api.delega.dev); custom endpoints receive a clear error. | | claim_task | Claim the next available task from the queue for exclusive processing (work-queue semantics). Lease-based: default 300s, configurable 30-3600. Returns the task or reports an empty queue. Hosted API only. | | heartbeat_task | Extend the lease on a claimed task. Call periodically while working so the claim isn't reclaimed. Hosted API only. | | release_task | Release a claimed task back to the queue without completing it. Hosted API only. | | set_task_state | Report working, waiting_input, or errored on a claimed task without extending the lease. Hosted API only. | | complete_task | Mark a task as completed | | delete_task | Delete a task permanently | | add_comment | Add a comment to a task | | list_projects | List all projects | | get_stats | Get task statistics | | list_agents | List registered agents | | register_agent | Register a new agent (returns API key), optionally with a role preset | | set_agent_role | Set an agent's role: worker, coordinator, or admin (admin key required) | | delete_agent | Delete an agent (refused if agent has active tasks) | | list_webhooks | List all webhooks (admin only) | | create_webhook | Create a webhook for event notifications, including task.linked (admin only) | | delete_webhook | Delete a webhook by ID (admin only) |

Task output format

Task-returning tools (list_tasks, get_task, create_task, update_task, assign_task) render each task with assignment metadata when available:

[#42] Ship the release
  Description: Cut RC, tag, push to npm
  Project: Delega
  Labels: release
  Priority: 3
  Due: 2026-04-20
  Assigned to: Coordinator (#7)
  Created by: planner (#3)
  Completed: no

Assigned to / Created by / Completed by lines are emitted only when the underlying field is populated. Custom /api-style endpoints return a nested agent object so the assignee renders as <display_name> (#id); the hosted api.delega.dev API returns the raw agent ID so it renders as #<id>.

Tasks that are part of a delegation chain also surface the chain metadata:

[#def] Draft intro
  Status: delegated
  Assigned to: Drafter (#3)
  Created by: Coordinator (#7)
  Delegation: depth 1, parent #abc, root #abc
  Delegated by: Coordinator (#7)
  Completed: no
  Context keys: step, findings (2)

Single-task tools (get_task, create_task, update_task, assign_task, delegate_task, update_task_context) use a detail render that pretty-prints the full context blob (truncated at 2000 chars). list_tasks uses the concise list render which shows Context keys: … instead.

get_task also shows attached task links when present:

  Links:
    branch: delega-dev/delega-api phase-3-github — https://github.com/delega-dev/delega-api/tree/phase-3-github
    pr: delega-dev/delega-api 42 — https://github.com/delega-dev/delega-api/pull/42

Delegation chains

get_task_chain returns the full parent/child chain for any task in the chain. Output is indented by delegation_depth:

Delegation chain (root #abc, depth 2, 2/4 complete):
  [#abc] Write report (depth 0, delegated)
    [#def] Draft intro (depth 1, completed)
    [#jkl] Draft conclusion (depth 1, pending)
      [#ghi] Research sources (depth 2, completed)

Nodes are sorted by depth then creation order (matching the API's response ordering).

Hosted API

Delega is a hosted service. Point DELEGA_API_URL at https://api.delega.dev — free up to 1,000 tasks/month.

Links

• Delega — Main site
• GitHub — Source code
• API Docs — REST API reference

License

MIT