---
title: "Changes to Open a plan; stream SSE of the orchestration."
method: POST
path: "/plan"
---

# Changes to Open a plan; stream SSE of the orchestration.

`POST /plan`

> Every recorded change to this endpoint, newest first.

## Timeline

Changed in 2 of 8 revisions.

- **2026-05-16** `3c89680038fb` — 3 warning, 5 info
- **2026-04-23** `b4f015868674` — 1 breaking, 1 warning

## Changes

- **2026-05-16** `3c89680038fb` — 3 warning, 5 info
  - added the new `internal_error` enum value to the `error` response property for the response status `400`
  - added the new `internal_error` enum value to the `error` response property for the response status `401`
  - added the new `internal_error` enum value to the `error` response property for the response status `500`
  - added the new optional request property `history`
  - added the new optional request property `prior_summary`
  - removed the `session_failed` enum value from the `error` response property for the response status `400`
  - removed the `session_failed` enum value from the `error` response property for the response status `401`
  - removed the `session_failed` enum value from the `error` response property for the response status `500`
- **2026-04-23** `b4f015868674` — 1 breaking, 1 warning
  - the `preferences/timeout_ms` request property's min was increased to `1000.00`
  - the `preferences/timeout_ms` request property's max was set to `21600000.00`

---

[Operation](https://skmtc.dev/getbindu/apis/bindu-gateway-api/docs/plan/post.md) · [API](https://skmtc.dev/getbindu/apis/bindu-gateway-api.md) · [Page](https://skmtc.dev/getbindu/apis/bindu-gateway-api/changes/plan/post)