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[PR #3857] feat: expand checkpointer integration contributing docs [closes DOC-1056] #3869

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opened 2026-06-05 18:53:25 -04:00 by yindo · 0 comments
yindo commented 2026-06-05 18:53:25 -04:00
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📋 Pull Request Information

Original PR: https://github.com/langchain-ai/docs/pull/3857
Author: @open-swe[bot]
Created: 5/4/2026
Status: 🔄 Open

Base: main ← Head: open-swe/9d01c6ec-9a1e-f7c2-64a6-849b03777462

📝 Commits (2)

  • 0ade28a Document the checkpointer storage contract and delta channel requirements so integration authors have clearer implementation guidance.
  • 7b014ad feat: expand checkpointer integration contributing docs [closes DOC-1056]

📊 Changes

2 files changed (+174 additions, -2 deletions)

View changed files

📝 src/oss/contributing/implement-langchain.mdx (+172 -2)
📝 src/oss/python/integrations/checkpointers/index.mdx (+2 -0)

📄 Description

Description

The previous checkpointer section in the integration authoring guide was a single sentence pointing at the LangGraph repo, which left contributors without guidance on the storage contract or how to support DeltaChannel. This PR expands the section with the saver method contract, a BaseCheckpointSaver scaffold, a delta-channel checklist, an annotated _get_channel_writes_history example, and conformance-suite usage. The integrations index links to the new authoring guidance so backend authors land on it from either entry point.

Release Note

none

Test Plan

  • Verify /oss/python/contributing/implement-langchain#checkpointers renders the new sections, code blocks, and cross-references in the docs preview.

Opened collaboratively by Naomi Pentrel and open-swe.

🔄 This issue represents a GitHub Pull Request. It cannot be merged through Gitea due to API limitations.

## 📋 Pull Request Information **Original PR:** https://github.com/langchain-ai/docs/pull/3857 **Author:** [@open-swe[bot]](https://github.com/apps/open-swe) **Created:** 5/4/2026 **Status:** 🔄 Open **Base:** `main` ← **Head:** `open-swe/9d01c6ec-9a1e-f7c2-64a6-849b03777462` --- ### 📝 Commits (2) - [`0ade28a`](https://github.com/langchain-ai/docs/commit/0ade28a24e9c01876a293d046b9a42b7a59b6a26) Document the checkpointer storage contract and delta channel requirements so integration authors have clearer implementation guidance. - [`7b014ad`](https://github.com/langchain-ai/docs/commit/7b014ad5eafb12e3e2bc7bf99c18a9c5a2cef3e8) feat: expand checkpointer integration contributing docs [closes DOC-1056] ### 📊 Changes **2 files changed** (+174 additions, -2 deletions) <details> <summary>View changed files</summary> 📝 `src/oss/contributing/implement-langchain.mdx` (+172 -2) 📝 `src/oss/python/integrations/checkpointers/index.mdx` (+2 -0) </details> ### 📄 Description ## Description The previous checkpointer section in the integration authoring guide was a single sentence pointing at the LangGraph repo, which left contributors without guidance on the storage contract or how to support `DeltaChannel`. This PR expands the section with the saver method contract, a `BaseCheckpointSaver` scaffold, a delta-channel checklist, an annotated `_get_channel_writes_history` example, and conformance-suite usage. The integrations index links to the new authoring guidance so backend authors land on it from either entry point. ## Release Note none ## Test Plan - [ ] Verify `/oss/python/contributing/implement-langchain#checkpointers` renders the new sections, code blocks, and cross-references in the docs preview. _Opened collaboratively by Naomi Pentrel and open-swe._ --- <sub>🔄 This issue represents a GitHub Pull Request. It cannot be merged through Gitea due to API limitations.</sub>
yindo added the pull-request label 2026-06-05 18:53:25 -04:00
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Reference: langchain-ai/docs#3869
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