---
title: "Replace Full"
method: PUT
path: "/api/trajectories/{session_id}/full/chunk"
tags: ["trajectories"]
---

# Replace Full

`PUT /api/trajectories/{session_id}/full/chunk`

Cover-write. Used by clients that lost their sync_state and want to
reset the canonical copy (e.g. after a disk-full / partial write). Same
quota gates as append; no FF check.

## Path parameters

- `session_id` string, required

## Headers

- `authorization` string, nullable

## Response `200`

Successful Response

- object

## Other responses

- `422` — Validation Error

## Changes

- **2026-09-04** `ab56f76234f2` — 1 info
  - endpoint added

[Change history](https://skmtc.dev/omicos/apis/omicos-server/changes/api/trajectories/:session_id/full/chunk/put.md)

---

[API](https://skmtc.dev/omicos/apis/omicos-server.md) · [All operations](https://skmtc.dev/omicos/apis/omicos-server/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/omicos/omicos-server/revisions/ab56f76234f2/schema)