Prune Threads ↗
noSummary: Prune threads by ID. The 'delete' strategy removes threads entirely. The 'keep_latest' strategy prunes old checkpoints but keeps threads and their latest state.
Original Documentation
Documentation Index#
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Prune threads by ID. The ‘delete’ strategy removes threads entirely. The ‘keep_latest’ strategy prunes old checkpoints but keeps threads and their latest state.
OpenAPI#
openapi: 3.1.0
info:
title: LangSmith Deployment
version: 0.1.0
servers: []
security: []
tags:
- name: Assistants
description: An assistant is a configured instance of a graph.
- name: Threads
description: A thread contains the accumulated outputs of a group of runs.
- name: Thread Runs
description: >-
A run is an invocation of a graph / assistant on a thread. It updates the
state of the thread.
- name: Stateless Runs
description: >-
A run is an invocation of a graph / assistant, with no state or memory
persistence.
- name: Crons
description: >-
A cron is a periodic run that recurs on a given schedule. The repeats can
be isolated, or share state in a thread
- name: Store
description: >-
Store is an API for managing persistent key-value store (long-term memory)
that is available from any thread.
- name: A2A
description: >-
Agent-to-Agent Protocol related endpoints for exposing assistants as
A2A-compliant agents.
- name: MCP
description: >-
Model Context Protocol related endpoints for exposing an agent as an MCP
server.
- name: System
description: System endpoints for health checks, metrics, and server information.
paths:
/threads/prune:
post:
tags:
- Threads
summary: Prune Threads
description: >-
Prune threads by ID. The 'delete' strategy removes threads entirely. The
'keep_latest' strategy prunes old checkpoints but keeps threads and
their latest state.
operationId: prune_threads_threads_prune_post
requestBody:
content:
application/json:
schema:
$ref: '#/components/schemas/ThreadPruneRequest'
required: true
responses:
'200':
description: Success
content:
application/json:
schema:
$ref: '#/components/schemas/ThreadPruneResponse'
'422':
description: Validation Error
content:
application/json:
schema:
$ref: '#/components/schemas/ErrorResponse'
components:
schemas:
ThreadPruneRequest:
properties:
thread_ids:
type: array
items:
type: string
format: uuid
title: Thread IDs
description: List of thread IDs to prune.
strategy:
type: string
enum:
- delete
- keep_latest
title: Strategy
description: >-
The prune strategy. 'delete' removes threads entirely. 'keep_latest'
prunes old checkpoints but keeps threads and their latest state.
default: delete
required:
- thread_ids
type: object
title: ThreadPruneRequest
description: Payload for pruning threads.
ThreadPruneResponse:
properties:
pruned_count:
type: integer
title: Pruned Count
description: Number of threads successfully pruned.
required:
- pruned_count
type: object
title: ThreadPruneResponse
description: Response from pruning threads.
ErrorResponse:
type: object
required:
- detail
properties:
detail:
type: string
description: Human-readable error message
title: ErrorResponse
description: Error response returned from the serverLink last verified
June 7, 2026.
View original ↗
Source: LangChain Docs
Link last verified: 2026-03-04