Publishers
Labs, studios, foundations, operators.
37 houses on the desk. Listing counts are the open index, not just the warehoused artifacts. 318 slips sit in unnamed buckets — we do not invent a studio for them.
House kind
lab · San Francisco
Anthropic
Origin of the Agent Skills spec and the Claude Code harness.
28 listings · 98
lab · San Francisco
OpenAI
Codex CLI harness and the second signer of the Agent Skills standard.
8 listings · 96
lab · Palo Alto
xAI
Grok Build — a model-native coding harness with multi-agent orchestration.
2 listings · 91
studio · San Francisco
Anysphere
Cursor's agent harness, tuned for IDE-resident long-running work.
3 listings · 93
lab · Mountain View
Google DeepMind
Gemini CLI / Antigravity harness, folded into Gemini Enterprise.
11 listings · 94
enterprise · San Francisco
GitHub
Copilot Workspace and agentic Actions as a delivery harness.
8 listings · 92
foundation · Remote
OpenCode
Model-agnostic open-source coding harness. MIT, no lab lock-in.
2 listings · 88
studio · London
Helix Orchestration
The 10³–10⁴ problem: supervisors, budget, topology, recovery.
13 listings · 90
studio · Berlin
Lattice Labs
Independent harness engineering. Recovery loops, schedulers, evals.
14 listings · 87
studio · Tel Aviv
Northstar Security
Security-reviewed skills. Supply-chain scanning for SKILL.md.
6 listings · 89
enterprise · Chicago
Meridian Systems
Internal harness and delivery skills, published for the buyer's own fleets.
2 listings · 84
studio · San Francisco
Factory
Droids — long-running software-delivery agents as a harness.
2 listings · 86
studio · San Francisco
Vercel
v0 Agent and skills.sh — the package graph for Agent Skills.
14 listings · 90
enterprise · Redmond
Microsoft
Playwright, AutoGen, and the office loop as tools.
14 listings · 91
studio · San Francisco
Cognition
Devin, Devin Desktop, Devin Local. Windsurf’s name died in June 2026.
5 listings · 88
enterprise · Seattle
Amazon Web Services
Kiro and Amazon Q. Spec-first IDE, account-bound CLI.
6 listings · 89
enterprise · San Francisco
Cloudflare
Workers, Durable Objects, Agents SDK. State that survives the isolate.
9 listings · 88
studio · San Francisco
LangChain
LangGraph and the graph people buy before they buy a supervisor.
6 listings · 86
studio · Prague
JetBrains
Junie — autonomous agent for the IntelliJ family.
3 listings · 85
studio · San Francisco
Sourcegraph
Amp. Repo intel in the loop, not a search tab.
3 listings · 87
enterprise · San Francisco
Block
Goose — local-first harness. Recipes as files.
2 listings · 84
foundation · Remote
Aider
Git-native pair harness. The repo is the memory.
2 listings · 86
foundation · Remote
Continue
Open IDE harness. Model-agnostic, rules as files.
2 listings · 83
studio · Remote
Supabase
Postgres skills and MCP. The database as a tool, scoped.
2 listings · 84
enterprise · Remote
GitLab
Duo Agent Platform. Policy stays in the other forge.
2 listings · 85
enterprise · San Francisco
HashiCorp
Terraform strict. Plan is not apply.
3 listings · 86
enterprise · San Francisco
Stripe
Money as a tool. Writing money is HITL.
3 listings · 90
enterprise · Armonk
IBM
watsonx and the trace layer enterprises already bought.
3 listings · 82
enterprise · Sydney
Atlassian
Jira and Confluence as tools, not tabs.
3 listings · 83
studio · San Francisco
Zed
Zed agent. Fast editor, open protocol.
3 listings · 82
foundation · New York
Hugging Face
smolagents and the open-weight loop.
2 listings · 85
studio · Remote
E2B
Sandboxes for untrusted loops. Firecracker as a product.
2 listings · 84
studio · London
Pydantic
Pydantic AI. Structured output that fails closed.
2 listings · 85
studio · San Francisco
Mastra
TypeScript agent framework. Workflows, not a personality.
2 listings · 82
studio · Remote
Linear
Tickets as a tool. Fine-grained scopes only.
4 listings · 86
studio · San Francisco
Notion
Pages and databases. Do not grant workspace owner.
3 listings · 83
studio · San Francisco
Sentry
Errors as a tool, not a tab.
2 listings · 84