---
title: "Append task trace event"
method: POST
path: "/v1/tasks/{task_id}/trace/events"
tags: ["task-trace"]
---

# Append task trace event

`POST /v1/tasks/{task_id}/trace/events`

## Request

- Base URL: `https://api.lithtrix.ai` (the document declares no server; this is the origin it was published from)
- URL: `https://api.lithtrix.ai/v1/tasks/{task_id}/trace/events`
- Auth: none declared

Task participant only. Records proposed action and outcome — no runtime veto. Optional advisory_claims trigger authoritative-vs-advisory discrepancy recording.

## Path parameters

- `task_id` string, required

## Headers

- `authorization` string, nullable

## Request body

- TaskTraceAppendRequest
  - `proposed_action` string, required
  - `delegation_id` string, nullable
  - `scope_json` object, nullable
  - `evidence_json` object, nullable
  - `decision` string, required
  - `outcome` string, nullable
  - `advisory_claims` string[], nullable

## Response `201`

Successful Response

- object

## Other responses

- `422`: Validation Error

---

[API](https://skmtc.dev/lithtrix/apis/lithtrix-api.md) · [All operations](https://skmtc.dev/lithtrix/apis/lithtrix-api/llms.txt) · [OpenAPI document](https://skmtc.dev/lithtrix/apis/lithtrix-api/revisions/be5de51bf4f8?raw)