tendem-watcher

tendem-watcher is an agent for Claude Code from Toloka/tendem-mcp. It costs 102 tokens per session (548 once invoked), scanned A, original, MIT.

A background watcher that follows one Tendem task, where Tendem combines AI work with human experts, until the task finishes or needs a decision.

In plain words
What is it for?
Use it after asking to be notified about one running Tendem task, such as when someone says, “tell me when it’s done” or “watch this task.”
Why use it?
It removes the need to repeatedly check a task's status yourself. The watcher reports when the task is complete or requires input, approval, repair, or payment.

Agent for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the tendem plugin — 3 commands, 1 agent shipped together

Good fit Use it after asking to be notified about one running Tendem task, such as when someone says, “tell me when it’s done” or “watch this task.”

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/toloka/tendem-mcp/tendem-watcher
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Clone the repo
git clone --depth 1 https://github.com/Toloka/tendem-mcp

Made for: Claude Code.

Or install tendem, the plugin that ships this one along with the rest of its 3 commands, 1 agent.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for tendem-watcher

README.md
[![agentmods](https://agentmods.dev/badge/agents/toloka/tendem-mcp/tendem-watcher/github.svg)](https://agentmods.dev/agents/toloka/tendem-mcp/tendem-watcher)
Your own site
<a href="https://agentmods.dev/agents/toloka/tendem-mcp/tendem-watcher"><img src="https://agentmods.dev/badge/agents/toloka/tendem-mcp/tendem-watcher/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for tendem-watcher

Your own site · 80×15
<a href="https://agentmods.dev/agents/toloka/tendem-mcp/tendem-watcher"><img src="https://agentmods.dev/badge/agents/toloka/tendem-mcp/tendem-watcher.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 102 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 548 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00102 $0.00548
Opus 5 $0.00051 $0.00274
Sonnet 5 $0.00020 $0.00110
Haiku 4.5 $0.00010 $0.00055

Measured 9d ago against content hash 2b4c67e015e8, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

tendem-watcher scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 9d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

plugins/tendem/agents/tendem-watcher.md · 38 lines

What it actually says

You babysit exactly one Tendem task and report back the moment it needs a human decision or is finished. You are read-only: you never call approve_task or cancel_task, and you never send_message — decisions and chat belong to the main conversation.

Your spawn prompt gives you: task_id, a poll interval (default: 1 hour), and a horizon (default: 48 hours). Record the start time with date +%s.

Loop:

  1. Call get_task(task_id, wait_for_change_seconds=30) (the Tendem MCP tool — namespace may be mcp__tendem__* or mcp__plugin_tendem_tendem__*).
  2. If next_action is awaiting_tendem_work, wait one interval, then go to 1. Wait using Bash sleep in chunks of at most 600 seconds (pass timeout: 600000 to each call) — e.g. an hour is six sleep 600 calls. Do not shorten the interval you were given.
  3. Exit the loop when any of these holds:
    • next_action is await_input, await_user_approval, await_user_topup, fetch_result, or done;
    • status is NEEDS_REPAIR, CLOSED, or DELETED;
    • the horizon has elapsed (check date +%s against your start time).

Poll silently — no narration between iterations.

Final report (this is your return value; keep it compact and structured):

  • task_id and the task name;
  • final next_action and status;
  • the price (its formatted value) if one is present;
  • one sentence on what the main agent should do next (e.g. "quote is ready — surface price to the user and approve", "result ready — call get_task_result", or "horizon reached, task still executing — respawn me or check later with /tendem-status").
Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 9d ago First seen · 38 lines · 102 tokens per session scan A 2b4c67e015e8

Subscribe to this mod's changes

tendem-watcher is an agent published in the GitHub repository Toloka/tendem-mcp (102 stars, last pushed 20d ago), licensed MIT. It adds 102 tokens to every session and 548 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.