Files
genai-toolbox/docs/en/resources/tools/postgres/postgres-list-installed-extensions.md
isaurabhuttam 0d7d8ab516 feat (tools/postgres-list-available-extensions, tools/postgres-list-installed-extensions): add tool types postgres-list-available-extensions and postgres-list-installed-extensions (#1401)
## Description

This PR adds two read-only, PostgreSQL tool kinds to MCPToolbox that
standardize discovery of extensions:

- `postgres-list-installed-extensions` – lists extensions installed in
the current database with: `name`, `version`, `schema`, `owner`
`description`.

- `postgres-list-available-extensions` – lists extensions available to
install on the cluster with: `name`, `default_version`, `description`.

Both are safe by default, and return well-typed JSON suitable for UIs,
agents, and automation.

**Test Output**
- `list_installed_extensions`

<img width="1414" height="781" alt="image"
src="https://github.com/user-attachments/assets/aab102a7-90ab-4516-9bc2-bcbfdab02bb1"
/>

- `list_available_extensions`

<img width="1421" height="774" alt="image"
src="https://github.com/user-attachments/assets/a4f80f22-bb2e-4350-acb2-12eb020d88cb"
/>



---
> Should include a concise description of the changes (bug or feature),
it's
> impact, along with a summary of the solution

## 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:

- [x] Make sure you reviewed

[CONTRIBUTING.md](https://github.com/googleapis/genai-toolbox/blob/main/CONTRIBUTING.md)
- [x] 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
- [x] Ensure the tests and linter pass
- [x] Code coverage does not decrease (if any source code was changed)
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🛠️ Fixes #<issue_number_goes_here>
2025-09-17 02:24:18 +00:00

1.9 KiB

title, type, weight, description, aliases
title type weight description aliases
postgres-list-installed-extensions docs 1 The "postgres-list-installed-extensions" tool retrieves all PostgreSQL extensions installed on a Postgres database.
/resources/tools/postgres-list-installed-extensions

About

The postgres-list-installed-extensions tool retrieves all PostgreSQL extensions installed on a Postgres database. It's compatible with any of the following sources:

postgres-list-installed-extensions lists all installed PostgreSQL extensions (extension name, version, schema, owner, description) as JSON. The does not support any input parameter.

Example

tools:
  list_installed_extensions:
    kind: postgres-list-installed-extensions
    source: postgres-source
    description: List all installed PostgreSQL extensions with their name, version, schema, owner, and description.

Reference

field type required description
kind string true Must be "postgres-list-active-queries".
source string true Name of the source the SQL should execute on.
description string true Description of the tool that is passed to the LLM.