Is the Poppy spec out?
Yes, as a draft. Draft 0.1 was published on October 9, 2026. It is licensed under Apache 2.0 and may change, including in backward-incompatible ways, before a stable release.Read the specification →
This page tracks the published draft, Sierra's announced next steps and the date we last checked the official sources. We log draft changes here.
What was promised, and where it stands
| Item | Status | Promised | Detail |
|---|---|---|---|
| v0.1 specification | Published | Published October 9, 2026 | Draft 0.1 is available. It may change, including in backward-incompatible ways, before a stable release. |
| Design workshops | Announced | Over the month after October 9 | Sierra says it will host design workshops. No schedule or sign-up page is public. |
| Reference implementation | Not published | Over the month after October 9 | Sierra announced a reference implementation to help developers get started. None was public as of October 10, 2026. The pi-poppy author also notes that no official JSON Schema or conformance suite is available; community projects are listed on the Poppy Implementations page. |
| Partner working group | Announced | Ongoing | Meta says a partner working group will build out the rest of the protocol. Membership isn’t public; Decagon says it has joined. |
| License | Published | Published October 9, 2026 | The draft specification is licensed under Apache License 2.0. |
| Governance and contribution process | Not stated | Not stated | The draft does not name a governing body or public contribution process. |
| Official documentation | Published | Published October 9, 2026 | The draft overview, specification, extensions, guides, and open topics are available online. |
Floated for later, no dates
Sierra's post lists three ideas with "could", not "will". None is part of the announced first version.
- More detailed permissions. Sierra lists action-level limits as a possible extension. Draft 0.1 defines poppy:read and poppy:write, and allows companies to add narrower scopes.
- Push notifications. The company tells the personal agent the moment a flight is delayed or an order ships.
- Payment extensions. The agent completes a purchase without the customer sharing card details.
Questions the draft leaves open
Draft 0.1 answers several questions from the launch announcement. These areas still need clarification or a later revision:
- How will the specification be governed, and who will maintain it?
- No official JSON Schema or conformance test suite is published. Will Sierra provide either?
- When will Sierra publish the announced reference implementation?
- How will later extensions handle finer-grained permissions, push notifications and payments?
Changelog
Updates to this tracker. Also available as RSS.
- · New implementations, Rocket demo and press. Added Datalayer’s SDKs, pi-poppy, a pre-draft quick start and the Rocket/Redfin Muse demo to Poppy Implementations. Also added Meta’s business announcement and two explainers.
- · Created the Poppy Implementations directory. Added a public Cloudflare Workers demo with its documented protocol coverage and limits, and linked it from the architecture guide.
- · Poppy rebrand and draft 0.1 coverage. Updated the site name and domain to Poppy, linked the official draft specification, and refreshed the spec tracker and timeline.
- · Partner lists, PACT and comparisons. Added Meta’s partner list (NiCE, Decagon), Decagon’s PACT, the Muse and Amazon timeline, and comparisons with MCP, A2A, UCP, ACP, TAP and PACT.
- · poppy.md launched. Overview, architecture, glossary and partners, based on the Sierra announcement.
Sources
- Introducing Personal Agent Protocol · Sierra (Bret Taylor, Clay Bavor), Oct 6, 2026 · primary source
- Sharing a draft of Personal Agent Protocol · Sierra (Bret Taylor, Clay Bavor), Oct 9, 2026 · primary source
- Personal Agent Protocol specification (Draft 0.1) · Personal Agent Protocol, Oct 9, 2026 · primary source
- Personal Agent Protocol overview (Draft 0.1) · Personal Agent Protocol, Oct 9, 2026 · primary source
- Genesys, NiCE Join Sierra, Meta on Open Standard for Personal AI Agents · CMSWire
- Meta joins with group of companies to tame 'chaos' of doing business with AI bots · CNBC, Oct 6, 2026
poppy.md is independent and not affiliated with Sierra, Meta or any Poppy partner. Facts here come from the sources listed on each page.