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docs: add pre/post processing docs for langchain JS#2421

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langchain-js-processing
Feb 18, 2026
Merged

docs: add pre/post processing docs for langchain JS#2421
twishabansal merged 59 commits into
mainfrom
langchain-js-processing

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@twishabansal twishabansal commented Feb 5, 2026

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Description

Trigger has been tested corresponding to local changes. Latest successful run: https://pantheon.corp.google.com/cloud-build/builds;region=global/0e7720f6-451c-4a89-8a43-a35131ec90a5;step=0?project=toolbox-testing-438616

Note: After merging, update JS pre and post processing sample testing trigger.

PR Checklist

Thank you for opening a Pull Request! Before submitting your PR, there are a
few things you can do to make sure it goes smoothly:

  • Make sure you reviewed
    CONTRIBUTING.md
  • Make sure to open an issue as a
    bug/issue
    before writing your code! That way we can discuss the change, evaluate
    designs, and agree on the general idea
  • Ensure the tests and linter pass
  • Code coverage does not decrease (if any source code was changed)
  • Appropriate docs were updated (if necessary)
  • Make sure to add ! if this involve a breaking change

🛠️ Fixes #<issue_number_goes_here>

twishabansal and others added 30 commits February 3, 2026 14:11
Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>
Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>
Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>
Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>
Explicitly document that these capabilities are typically provided by orchestration frameworks (like LangChain, LangGraph) rather than the Toolbox SDK itself, but that Toolbox tools are designed to leverage them.
@twishabansal twishabansal requested a review from Yuan325 February 18, 2026 07:42
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@anubhav756 anubhav756 left a comment

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Nit suggestions. LGTM otherwise.

Comment thread docs/en/samples/pre_post_processing/js.md Outdated
Comment thread docs/en/samples/pre_post_processing/js.md
Comment thread docs/en/samples/pre_post_processing/js.md Outdated
twishabansal and others added 3 commits February 18, 2026 13:25
Co-authored-by: Anubhav Dhawan <anubhavdhawan@google.com>
Co-authored-by: Anubhav Dhawan <anubhavdhawan@google.com>
Co-authored-by: Anubhav Dhawan <anubhavdhawan@google.com>
@twishabansal twishabansal dismissed Yuan325’s stale review February 18, 2026 07:56

Dismissal required to merge PR earlier

@twishabansal twishabansal enabled auto-merge (squash) February 18, 2026 07:57
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@googleapis googleapis deleted a comment from github-actions Bot Feb 18, 2026
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@twishabansal twishabansal merged commit 77f7990 into main Feb 18, 2026
13 of 14 checks passed
@twishabansal twishabansal deleted the langchain-js-processing branch February 18, 2026 11:45
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🧨 Preview deployments removed.

github-actions Bot pushed a commit that referenced this pull request Feb 18, 2026
## Description

Trigger has been tested corresponding to local changes. Latest
successful run:
https://pantheon.corp.google.com/cloud-build/builds;region=global/0e7720f6-451c-4a89-8a43-a35131ec90a5;step=0?project=toolbox-testing-438616

Note: After merging, update JS pre and post processing sample testing
trigger.

## PR Checklist

> Thank you for opening a Pull Request! Before submitting your PR, there
are a
> few things you can do to make sure it goes smoothly:

- [ ] Make sure you reviewed

[CONTRIBUTING.md](https://github.com/googleapis/genai-toolbox/blob/main/CONTRIBUTING.md)
- [ ] Make sure to open an issue as a

[bug/issue](https://github.com/googleapis/genai-toolbox/issues/new/choose)
  before writing your code! That way we can discuss the change, evaluate
  designs, and agree on the general idea
- [ ] Ensure the tests and linter pass
- [ ] Code coverage does not decrease (if any source code was changed)
- [ ] Appropriate docs were updated (if necessary)
- [ ] Make sure to add `!` if this involve a breaking change

🛠️ Fixes #<issue_number_goes_here>

---------

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>
Co-authored-by: Anubhav Dhawan <anubhavdhawan@google.com> 77f7990
github-actions Bot pushed a commit to renovate-bot/googleapis-_-genai-toolbox that referenced this pull request Feb 18, 2026
…is#2421)

## Description

Trigger has been tested corresponding to local changes. Latest
successful run:
https://pantheon.corp.google.com/cloud-build/builds;region=global/0e7720f6-451c-4a89-8a43-a35131ec90a5;step=0?project=toolbox-testing-438616

Note: After merging, update JS pre and post processing sample testing
trigger.

## PR Checklist

> Thank you for opening a Pull Request! Before submitting your PR, there
are a
> few things you can do to make sure it goes smoothly:

- [ ] Make sure you reviewed

[CONTRIBUTING.md](https://github.com/googleapis/genai-toolbox/blob/main/CONTRIBUTING.md)
- [ ] Make sure to open an issue as a

[bug/issue](https://github.com/googleapis/genai-toolbox/issues/new/choose)
  before writing your code! That way we can discuss the change, evaluate
  designs, and agree on the general idea
- [ ] Ensure the tests and linter pass
- [ ] Code coverage does not decrease (if any source code was changed)
- [ ] Appropriate docs were updated (if necessary)
- [ ] Make sure to add `!` if this involve a breaking change

🛠️ Fixes #<issue_number_goes_here>

---------

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>
Co-authored-by: Anubhav Dhawan <anubhavdhawan@google.com> 77f7990
github-actions Bot pushed a commit to Jaleel-zhu/genai-toolbox that referenced this pull request Feb 18, 2026
…is#2421)

## Description

Trigger has been tested corresponding to local changes. Latest
successful run:
https://pantheon.corp.google.com/cloud-build/builds;region=global/0e7720f6-451c-4a89-8a43-a35131ec90a5;step=0?project=toolbox-testing-438616

Note: After merging, update JS pre and post processing sample testing
trigger.

## PR Checklist

> Thank you for opening a Pull Request! Before submitting your PR, there
are a
> few things you can do to make sure it goes smoothly:

- [ ] Make sure you reviewed

[CONTRIBUTING.md](https://github.com/googleapis/genai-toolbox/blob/main/CONTRIBUTING.md)
- [ ] Make sure to open an issue as a

[bug/issue](https://github.com/googleapis/genai-toolbox/issues/new/choose)
  before writing your code! That way we can discuss the change, evaluate
  designs, and agree on the general idea
- [ ] Ensure the tests and linter pass
- [ ] Code coverage does not decrease (if any source code was changed)
- [ ] Appropriate docs were updated (if necessary)
- [ ] Make sure to add `!` if this involve a breaking change

🛠️ Fixes #<issue_number_goes_here>

---------

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>
Co-authored-by: Anubhav Dhawan <anubhavdhawan@google.com> 77f7990
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3 participants