Agentic Task System (ATS)

@reneza/ats-mcp

Model Context Protocol server for the Agentic Task System.

It exposes the task app you already use to any MCP client (Claude Desktop, Cursor, …) as a small set of tools, backed by ATS's hybrid + RRF retrieval. It's storage-agnostic: it runs over any adapter that satisfies the ~6-method ATS contract. Generic adapters get keyword + native + RRF fusion for free; embedder-backed adapters (e.g. TickTick) get the full dense/sparse hybrid.

Tools

Tool	What it does
find	Available adapter signals plus Core keyword retrieval fused via RRF. Adapters with embeddings add dense+sparse hybrid. Pass explain: true for a per-result breakdown.
get_task	Fetch one item (full body) by project id + task id.
list_projects	List projects / folders.
create_task	Create an item — the agent→human write side of the two-way bus.
update_task	Partial update of an existing item.
similar	Semantically similar items (embedder-backed adapters).
url_for	Paste-ready deep link back to the item in its native app.
set_task_intent	Store outcome, completion conditions, authority, constraints, and approval requirement.
promote_exploration	Create a committed execution item and link the source as evidence without copying its body.
get_task_hierarchy / set_task_hierarchy	Read or assign exploration/goal/project/task role and one explicit parent.
evaluate_task_hierarchy	Check parent support, role ordering, cycles, lifecycle validity, and active explicit conflicts.
set_task_lifecycle	Set active/archived/superseded state and validity windows.
get_task_security / set_task_security	Read or define task content trust, action/resource scope, denials, and approval boundaries.
check_task_access	Require a reason, evaluate one scoped request, and append an allow/deny audit record.
add_task_link	Add a typed relationship between two tasks.
remove_task_link	Remove one exact typed relationship.
task_graph	Traverse incoming and outgoing typed relationships.
context_for_task	Return valid deliberate context first, then retrieval discoveries, with provenance.
record_action / list_actions	Write and inspect the append-only agent action ledger.
snapshot_task_events / poll_task_events	Establish and poll deterministic task-state events, durably staged before checkpoint advancement. Observation only; no agent execution.
list_pending_task_events / acknowledge_task_events	Recover unacknowledged event envelopes and explicitly remove successfully consumed ids.

The security tools are a decision point for cooperating MCP clients. They do not sandbox tools outside ATS. The event tools emit state changes only. The local spool stores references and hashes, not task bodies. Consumers remain responsible for intent, lifecycle, access checks, and acknowledgement after successful handling.

Install & run

npm install -g @reneza/ats-mcp @reneza/ats-adapter-ticktick
ats-mcp   # stdio server

The active adapter is resolved exactly like the CLI:

1. ATS_ADAPTER env var, else
2. ~/.config/ats/adapter (a single line with the adapter package name), else
3. @reneza/ats-adapter-ticktick.

Wire it into Claude Desktop

{
  "mcpServers": {
    "ats": {
      "command": "ats-mcp",
      "env": { "ATS_ADAPTER": "@reneza/ats-adapter-ticktick" }
    }
  }
}

Use a different store

Point it at any ATS adapter — a folder of markdown, Obsidian, Notion, your own:

ATS_ADAPTER=@you/ats-adapter-obsidian ats-mcp

See the adapter contract — six storage methods plus authentication lifecycle hooks.

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• Source: https://github.com/renezander030/agentic-task-system
• License: MIT