coworkers — knowledge-engineering

Coworkers communicate via 4 peer protocols: a2a (direct peer), e2m-mcp (typed Envelope → mailbox JSONL), mcp (typed tools), acp (HTTP REST). operator is a first-class participant with mailbox + queue. Schema: cowork/schemas/envelope.ts.

directory 12 coworkers + operator

Operator

human

operator

The human principal. Receives escalations, summaries, and decision requests from coworkers. Steers via skills — not interrupts. Has mailbox + queue.

e2m-mcp

peers: pm-coworker, project-management-coworker, legal-coworker

Product Management

sonnet4.6

product-management

Lead orchestrator. Routes work, manages priority-rerank, assigns tasks to peer coworkers via e2m-mcp mailbox. Reports to operator.

a2ae2m-mcpmcp

trigger: /pm-agent

peers: project-management-coworker, engineering-coworker, design-coworker +1

Project Management

opus4.6 / opus4.8

project-management

Execution tracker. Nightly review (00:00), type-safety audit (06:00), morning summary (07:00). Reports to product-management. Uses opus-4-6 for high-effort tasks.

a2ae2m-mcpmcp

trigger: /project-management-coworker

peers: pm-coworker, engineering-coworker

Engineering

haiku4.5

engineering

TypeScript + Rust implementation. Owns cowork/mcp/, cowork/templates/, src/. Processes skill-gate DurableTasks.

a2ae2m-mcpmcp

trigger: /engineering-coworker

peers: pm-coworker, data-coworker

Design

sonnet4.6

design

Design token + HTML artifact coworker. Owns cowork/artifacts/ and the 8-token design system.

a2ae2m-mcp

trigger: /design-coworker

peers: pm-coworker, engineering-coworker

Data

haiku4.5

data

AlloyDB / Kimball DW coworker. Owns dw.* schema, dim_agent_templates, fact tables.

a2ae2m-mcp

trigger: /data-coworker

peers: pm-coworker, engineering-coworker

Sales

haiku4.5

sales

Outreach + mail coworker. Owns cowork/apps/mail/, sales queue. All sends require operator approval.

a2ae2m-mcp

trigger: /sales-agent

peers: pm-coworker, finance-coworker

Operations

haiku4.5

operations

CF Workers, scheduled tasks, deploy pipelines, subdomain provisioning.

a2ae2m-mcpacp

trigger: /run-operations

peers: pm-coworker, finance-coworker, engineering-coworker

Finance

haiku4.5

finance

Cost tracking, vendor spend, budget gates, third-party cost entries.

a2ae2m-mcp

trigger: /finance-coworker

peers: pm-coworker, sales-coworker, operations-coworker

Legal

opus4.6

legal

NDA triage, compliance checks, contract review. Writes to cowork/apps/legal/. All correspondence queued.

a2ae2m-mcp

trigger: /legal-coworker

peers: pm-coworker, sales-coworker, engineering-coworker

Marketing

sonnet4.6

marketing

Brand, content, SEO, campaigns, competitive intelligence. All content queued for approval.

a2ae2m-mcp

trigger: /marketing-coworker

peers: pm-coworker, sales-coworker, legal-coworker

Agent Resources

sonnet4.6

agent-resources

HR for agents. Onboard new coworkers, upgrade skills, track ke_fit_score, retire agents.

a2ae2m-mcp

trigger: /agent-resources-coworker

peers: pm-coworker, engineering-coworker, human-resources-coworker

Human Resources

sonnet4.6

human-resources

People ops for humans. Recruiting, onboarding, performance, comp, org planning. Drafts only.

a2ae2m-mcp

trigger: /human-resources-coworker

peers: pm-coworker, legal-coworker, finance-coworker +1

operator inbox cowork/data/mailbox/operator.jsonl

Operator inbox — envelopes from coworkers requiring your attention. In Phase 23 this updates live from Cloudflare KV. Source: cowork/data/mailbox/operator.jsonl. Envelope schema: cowork/schemas/envelope.ts.

mailbox 3 messages

summary from: project-management-coworker

Session summary: local-model routing shipped, 12 DurableTasks queued

Branch claude/frontend-workers-dispatch-skill-2026-06-18 pushed. ~18k tokens/night saved when WSL local model online.

notify from: legal-coworker

NDA triage: subagentknowledge.com TOS — 7 issues, counsel review needed

Classification: YELLOW. Risk: medium. No TOS draft exists. See cowork/apps/legal/nda-triage-2026-06-19.jsonl

⚡ decision required

schedule-counsel-reviewdefer-30-daysdraft-tos-now

notify from: pm-coworker

coworkers.subagentknowledge.com rebuilt: 13 coworkers + operator inbox added

project-management card now visible. Envelope schema published at cowork/schemas/envelope.ts.

queue 2 pending tasks

Set OLLAMA_TAILSCALE_IP — verify local model connectivity

from: project-management-coworker · ke_fit_score: 5

Decide: legal TOS path — counsel / defer / draft

from: legal-coworker · ke_fit_score: 4

protocol matrix coworker × protocol

coworker	model	a2a	e2m-mcp	mcp	acp
Operator	human	·	✓	·	·
Product Management	sonnet-4-6	✓	✓	✓	·
Project Management	opus-4-6	✓	✓	✓	·
Engineering	haiku-4-5	✓	✓	✓	·
Design	sonnet-4-6	✓	✓	·	·
Data	haiku-4-5	✓	✓	·	·
Sales	haiku-4-5	✓	✓	·	·
Operations	haiku-4-5	✓	✓	·	✓
Finance	haiku-4-5	✓	✓	·	·
Legal	opus-4-6	✓	✓	·	·
Marketing	sonnet-4-6	✓	✓	·	·
Agent Resources	sonnet-4-6	✓	✓	·	·
Human Resources	sonnet-4-6	✓	✓	·	·

peer protocols e2m-mcp: envelope → mailbox

a2a agent-to-agent

Direct peer invocation. Coworkers call each other by id without a broker.

e2m-mcp envelope-to-mailbox-mcp

Durable typed Envelopes via cowork/data/mailbox/.jsonl. Canonical inter-coworker protocol. Schema: cowork/schemas/envelope.ts.

mcp model-context-protocol

Typed MCP tools exposed to models and peer coworkers.

acp agent-client-protocol

HTTP REST /run endpoints consumed by external clients.

Envelope is the canonical wrapper for all e2m-mcp messages. Fields: _type:"envelope", envelope_type, from, to, subject, at, state, payload, requires_decision. Coworkers MUST emit typed Envelopes — never raw JSON blobs. Source: cowork/schemas/envelope.ts.