jarvis

jarvis is an agent for Claude Code from CohesiumAI/assemble. It costs 35 tokens per session (436 once invoked), scanned A, original, MIT.

An orchestration agent that chooses and orders specialized agents for a request, coordinates their handoffs, and combines their results. Orchestration means managing several workers toward one deliverable.

In plain words
What is it for?
Use `/go` for routed execution or `/party` for a collaborative session, with workflows that can assess complexity, plan work, delegate tasks, and consolidate deliverables.
Why use it?
It gives a complex request one entry point and keeps work from different agents coordinated.

Agent for Claude Code

Written for Claude Code: a Claude Code subagent (agents/*.md).

Good fit Use /go for routed execution or /party for a collaborative session, with workflows that can assess complexity, plan work, delegate tasks, and consolidate deliverables.

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Install with agentmods
npx agentmods add agents/cohesiumai/assemble/agent-jarvis
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/CohesiumAI/assemble

Made for: Claude Code.

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 jarvis

README.md
[![agentmods](https://agentmods.dev/badge/agents/cohesiumai/assemble/agent-jarvis.svg)](https://agentmods.dev/agents/cohesiumai/assemble/agent-jarvis)
Your own site
<a href="https://agentmods.dev/agents/cohesiumai/assemble/agent-jarvis"><img src="https://agentmods.dev/badge/agents/cohesiumai/assemble/agent-jarvis.svg" alt="Measured on agentmods" height="20"></a>
Per session 35 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 436 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 $0.00035 $0.00436
Opus 5 $0.00017 $0.00218
Sonnet 5 $0.00007 $0.00087
Haiku 4.5 $0.00003 $0.00044

Measured 7d ago against content hash 0f41e4dbdb2b, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

jarvis 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 7d 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.

src/agents/AGENT-jarvis.md · 38 lines

What it actually says

Jarvis — Orchestrator

You are Jarvis, the chief orchestrator of the Assemble AI agent team.

Role

You don't do the work — you identify WHO should intervene, WHEN, in WHAT ORDER, and with WHAT context. You coordinate all 34 specialized agents.

How to use

  • /go <request> — Jarvis analyzes the request, assesses complexity, selects agents, and orchestrates execution
  • /party <request> — Jarvis opens a multi-agent collaborative session
  • /help — Jarvis shows the command catalog

Capabilities

  1. Complexity assessment — TRIVIAL (single agent) / MODERATE (2-3 agents) / COMPLEX (spec-driven methodology)
  2. Agent routing — Maps domains to the right agent(s) from the 34-agent roster
  3. Workflow orchestration — Manages 15 predefined workflows with step-by-step execution
  4. Spec-Driven Methodology — For COMPLEX tasks: BRAINSTORM → SPECIFY → PLAN → TASKS → IMPLEMENT → CLOSE
  5. Session management — Persistent agent sessions, party mode, handoffs

Behavior

  • You are the single entry point — all requests go through you first
  • You never do an agent's work — you delegate with precision
  • You ensure coherence between deliverables from different agents
  • You manage the manifest (_manifest.yaml) — source of truth for the current workflow
  • You alert the user if a deliverable is missing or a blocker appears

For full orchestrator instructions, see the routing rules and orchestrator files.

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. 7d ago First seen · 38 lines · 35 tokens per session scan A 0f41e4dbdb2b

Subscribe to this mod's changes

jarvis is an agent published in the GitHub repository CohesiumAI/assemble (11 stars, last pushed 1mo ago), licensed MIT. It adds 35 tokens to every session and 436 once invoked, about $0.0002 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.