feat: add the Pydantic AI coding agent

Co-Authored-By: Claude <svc-devxp-claude@slack-corp.com>

Author: zimeg

.github/dependabot.yml

@@ -4,6 +4,7 @@ updates:
     directories:
       - "/"
       - "/openai-agents-sdk"
+      - "/pydantic-ai"
     schedule:
       interval: "daily"
     cooldown:

.github/workflows/ruff.yml

@@ -16,6 +16,7 @@ jobs:
       matrix:
         directory:
           - openai-agents-sdk
+          - pydantic-ai
     defaults:
       run:
         working-directory: ${{ matrix.directory }}

.github/workflows/tests.yml

@@ -16,6 +16,7 @@ jobs:
       matrix:
         directory:
           - openai-agents-sdk
+          - pydantic-ai
     defaults:
       run:
         working-directory: ${{ matrix.directory }}

AGENTS.md

@@ -7,6 +7,7 @@ Guidance for coding agents working in this repository.
 A monorepo for a **Coding Agent** sample for Slack, built with Bolt for Python. Each framework lives in its own directory as a standalone sample:
 
 - `openai-agents-sdk/` — built with the **OpenAI Agents SDK**
+- `pydantic-ai/` — built with **Pydantic AI**
 
 Implementations share a structure and user experience, not code. Keep each one obvious on its own, written in its framework's idiom, rather than adding shared helpers.
 
@@ -32,6 +33,7 @@ pytest
 ```
 .github/             # Shared CI workflows and dependabot config
 openai-agents-sdk/   # OpenAI Agents SDK implementation
+pydantic-ai/         # Pydantic AI implementation
 ```
 
 CI runs ruff and pytest against each directory with a matrix in `.github/workflows/ruff.yml` and `.github/workflows/tests.yml`. Dependabot watches each directory separately. When adding an implementation, add its directory to both workflow matrices, to `.github/dependabot.yml`, and to the framework table in the root `README.md`.

README.md

@@ -10,6 +10,7 @@ A sample Slack agent that showcases [Slack Code](https://docs.slack.dev/ai/slack
 | App                   | Directory            | Get started                                  | Framework                                                       |
 | --------------------- | -------------------- | -------------------------------------------- | --------------------------------------------------------------- |
 | **OpenAI Agents SDK** | `openai-agents-sdk/` | [View README](./openai-agents-sdk/README.md) | [openai-agents](https://openai.github.io/openai-agents-python/) |
+| **Pydantic AI**       | `pydantic-ai/`       | [View README](./pydantic-ai/README.md)       | [pydantic-ai](https://ai.pydantic.dev/)                         |
 
 ## What it can do
 

openai-agents-sdk/agent/workspace.py

@@ -9,7 +9,7 @@
 # Environment variables kept from the app's environment are everything except
 # the app's own tokens and anything that looks like a credential, so they aren't
 # passed to a command from the repository.
-SECRET_PREFIXES = ("OPENAI_", "SLACK_")
+SECRET_PREFIXES = ("ANTHROPIC_", "OPENAI_", "SLACK_")
 SECRET_MARKERS = ("API_KEY", "CREDENTIAL", "PASSWORD", "PRIVATE_KEY", "SECRET", "TOKEN")
 
 # git never waits on a prompt or an editor, since nobody can answer one.

pydantic-ai/.env.sample

@@ -0,0 +1,16 @@
+# Required, set at least one AI provider API key.
+# If both are set, Anthropic is used by default.
+# ANTHROPIC_API_KEY=YOUR_ANTHROPIC_API_KEY
+OPENAI_API_KEY=YOUR_OPENAI_API_KEY
+
+# Optional, uncomment and set when running without the Slack CLI (python3 app.py).
+# SLACK_APP_TOKEN=YOUR_SLACK_APP_TOKEN
+# SLACK_BOT_TOKEN=YOUR_SLACK_BOT_TOKEN
+
+# Required for OAuth (app_oauth.py). Set your app's OAuth credentials.
+# SLACK_CLIENT_ID=YOUR_SLACK_CLIENT_ID
+# SLACK_CLIENT_SECRET=YOUR_SLACK_CLIENT_SECRET
+# SLACK_SIGNING_SECRET=YOUR_SLACK_SIGNING_SECRET
+
+# Optional, uncomment and set when using a custom Slack instance.
+# SLACK_API_URL=YOUR_SLACK_API_URL

pydantic-ai/.gitignore

@@ -0,0 +1,52 @@
+# Build
+build/
+dist/
+docs/_sources/
+docs/.doctrees
+
+# Claude Code
+.claude/*.local.json
+
+# Coverage
+.coverage
+cov_*
+coverage.xml
+
+# Editors
+.idea/
+
+# Environment
+.env*
+!.env.sample
+env*/
+venv/
+.venv*
+
+# Logs
+logs/
+
+# macOS
+.DS_Store
+
+# OAuth
+data/
+
+# Python
+__pycache__/
+*.db
+*.egg
+*.egg-info/
+*.eggs/
+*.py[cod]
+*.so
+.mypy_cache/
+.pytype/
+.python-version
+*~
+pip
+
+# Testing
+.cache
+.pytest_cache/
+.tox
+tmp.txt

pydantic-ai/.slack/.gitignore

@@ -0,0 +1,2 @@
+apps.dev.json
+cache/

pydantic-ai/.slack/config.json

@@ -0,0 +1,6 @@
+{
+  "manifest": {
+    "source": "local"
+  },
+  "project_id": "3d533454-d0ab-41a8-a99d-e0ac11c33ad9"
+}