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[PR #479] [MERGED] feat(deepagents): add snapshot/start/stop lifecycle to LangSmithSandbox #499

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opened 2026-06-05 17:23:27 -04:00 by yindo · 0 comments
yindo commented 2026-06-05 17:23:27 -04:00
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📋 Pull Request Information

Original PR: https://github.com/langchain-ai/deepagentsjs/pull/479
Author: @ramon-langchain
Created: 4/21/2026
Status: ✅ Merged
Merged: 5/8/2026
Merged by: @hntrl

Base: main ← Head: feat/langsmith-sandbox-snapshots

📝 Commits (4)

  • 41db441 feat(deepagents): add snapshot/start/stop lifecycle to LangSmithSandbox
  • 03f70b2 build: regenerate pnpm-lock.yaml for langsmith peer dep bump
  • b7e2dbc style: run oxfmt on langsmith.ts
  • 48207f4 Create heavy-horses-wait.md

📊 Changes

8 files changed (+173 additions, -19 deletions)

View changed files

➕ .changeset/heavy-horses-wait.md (+5 -0)
📝 examples/sandbox/langsmith-sandbox.ts (+12 -8)
📝 libs/deepagents/package.json (+1 -1)
📝 libs/deepagents/src/backends/index.ts (+7 -0)
📝 libs/deepagents/src/backends/langsmith.test.ts (+77 -0)
📝 libs/deepagents/src/backends/langsmith.ts (+66 -9)
📝 libs/deepagents/src/index.ts (+4 -0)
📝 pnpm-lock.yaml (+1 -1)

📄 Description

Summary

Expose the new LangSmith sandbox snapshot and lifecycle APIs (landed in langsmith@0.5.20) through the LangSmithSandbox wrapper.

  • New methods on LangSmithSandbox: start(), stop(), captureSnapshot()
  • LangSmithSandbox.create() now accepts snapshotId (preferred) or templateName (deprecated); throws if neither is provided
  • Re-export upstream types as LangSmithSnapshot, LangSmithCaptureSnapshotOptions, LangSmithStartSandboxOptions
  • Bump langsmith peer dep to >=0.5.20
  • Update the example to boot from LANGSMITH_SANDBOX_SNAPSHOT_ID

Test plan

  • Unit tests: added coverage for start(), stop(), captureSnapshot(); 41/41 pass
  • Type-check clean
  • Dev smoke test against dev.api.smith.langchain.com — create from snapshot, execute, stop, start, execute after restart all working

🔄 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/deepagentsjs/pull/479 **Author:** [@ramon-langchain](https://github.com/ramon-langchain) **Created:** 4/21/2026 **Status:** ✅ Merged **Merged:** 5/8/2026 **Merged by:** [@hntrl](https://github.com/hntrl) **Base:** `main` ← **Head:** `feat/langsmith-sandbox-snapshots` --- ### 📝 Commits (4) - [`41db441`](https://github.com/langchain-ai/deepagentsjs/commit/41db441133b24d5c68dd7f794705d35732faacf3) feat(deepagents): add snapshot/start/stop lifecycle to LangSmithSandbox - [`03f70b2`](https://github.com/langchain-ai/deepagentsjs/commit/03f70b2a3bfa726d58d4c6a5a5dbcf2a837ac625) build: regenerate pnpm-lock.yaml for langsmith peer dep bump - [`b7e2dbc`](https://github.com/langchain-ai/deepagentsjs/commit/b7e2dbc9ef31ba0a73fc9116b6bbcb2b72dcfdf4) style: run oxfmt on langsmith.ts - [`48207f4`](https://github.com/langchain-ai/deepagentsjs/commit/48207f4cb1a68745e0dcfc8062d9fe7bb20fa473) Create heavy-horses-wait.md ### 📊 Changes **8 files changed** (+173 additions, -19 deletions) <details> <summary>View changed files</summary> ➕ `.changeset/heavy-horses-wait.md` (+5 -0) 📝 `examples/sandbox/langsmith-sandbox.ts` (+12 -8) 📝 `libs/deepagents/package.json` (+1 -1) 📝 `libs/deepagents/src/backends/index.ts` (+7 -0) 📝 `libs/deepagents/src/backends/langsmith.test.ts` (+77 -0) 📝 `libs/deepagents/src/backends/langsmith.ts` (+66 -9) 📝 `libs/deepagents/src/index.ts` (+4 -0) 📝 `pnpm-lock.yaml` (+1 -1) </details> ### 📄 Description ## Summary Expose the new LangSmith sandbox snapshot and lifecycle APIs (landed in `langsmith@0.5.20`) through the `LangSmithSandbox` wrapper. - New methods on `LangSmithSandbox`: `start()`, `stop()`, `captureSnapshot()` - `LangSmithSandbox.create()` now accepts `snapshotId` (preferred) or `templateName` (deprecated); throws if neither is provided - Re-export upstream types as `LangSmithSnapshot`, `LangSmithCaptureSnapshotOptions`, `LangSmithStartSandboxOptions` - Bump `langsmith` peer dep to `>=0.5.20` - Update the example to boot from `LANGSMITH_SANDBOX_SNAPSHOT_ID` ## Test plan - [x] Unit tests: added coverage for `start()`, `stop()`, `captureSnapshot()`; 41/41 pass - [x] Type-check clean - [x] Dev smoke test against `dev.api.smith.langchain.com` — create from snapshot, execute, stop, start, execute after restart all working --- <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 17:23:27 -04:00
yindo closed this issue 2026-06-05 17:23:28 -04:00
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Reference: langchain-ai/deepagentsjs#499
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