refactor(temporal): remove obsolete PydanticAI plugin

[daryllimyt]

Summary

• remove the unused TracecatPydanticAIPlugin and its worker/test wiring
• keep the existing Tracecat Temporal data converter and sandbox runners as the direct configuration
• verify every registered DSL and agent workflow initializes with a plugin-free Temporal client

Why

Agent execution now runs through run_agent_activity rather than PydanticAI's Temporal durable-execution API. The remaining plugin was legacy wiring that preserved the same converter already supplied by connect_to_temporal(), added PydanticAI-specific workflow exception types that are no longer raised, and depended on PydanticAI's private _workflow_runner.

PydanticAI remains in use outside Temporal and is not removed as a dependency.

Impact

No user-facing behavior change is intended. DSL and agent workers connect to Temporal without registering the obsolete PydanticAI plugin, while retaining Tracecat's existing converter and sandbox configuration.

Validation

• uv run pytest tests/unit/test_worker_activity_registration.py tests/temporal/test_agent_config_sandbox_parity.py -q — 19 passed
• uv run ruff check tracecat/agent/worker.py tracecat/dsl/worker.py tests/conftest.py tests/temporal/test_agent_config_sandbox_parity.py
• uv run ruff format --check tracecat/agent/worker.py tracecat/dsl/worker.py tests/conftest.py tests/temporal/test_agent_config_sandbox_parity.py
• uv run basedpyright tracecat/agent/worker.py tracecat/dsl/worker.py tests/conftest.py tests/temporal/test_agent_config_sandbox_parity.py
• repository pre-commit hooks

LOC breakdown

Category	+	-
Logic	2	49
Tests	30	4

---

Summary by cubic

Removed the obsolete TracecatPydanticAIPlugin and updated Temporal workers to initialize without plugins while keeping Tracecat’s data converter and sandbox setup. No user-facing changes.

• Refactors
  • Deleted tracecat/dsl/plugins.py and all references to TracecatPydanticAIPlugin in agent, DSL workers, and tests.
  • Switched to get_temporal_client() without plugins=, preserving the existing data converter and sandbox runners.
  • Added tests verifying registered workflows start without plugins and that connect_to_temporal() configures Tracecat’s data converter (PydanticPayloadConverter with compression via CompressionPayloadCodec) and passes an empty plugins list.

^{Written for commit 4071928. Summary will update on new commits.}

[zeropath-ai]

✅ No security or compliance issues detected. Reviewed everything up to 4071928.

Security Overview

• 🔎 Scanned files: 6 changed file(s)
• 🔗 Scan Link: https://zeropath.com/app/repositories/00dffd6c-8834-4dc9-b6d8-b44cd1622986?scanId=5fb35ef1-9d52-45a8-98cf-b5e6c6cb0700&codeScanTypes=PrScan&tab=issues

Detected Code Changes

Change Type

Relevant files

Refactor

► tests/conftest.py     Remove TracecatPydanticAIPlugin import and usage in temporal client initialization ► tests/temporal/test_agent_config_sandbox_parity.py     Add workflow tests without Temporal plugins and import new workflows ► tests/unit/test_temporal_client.py     Add unit test for Temporal client data converter configuration ► tracecat/agent/worker.py     Remove TracecatPydanticAIPlugin usage in get_temporal_client call ► tracecat/dsl/worker.py     Remove TracecatPydanticAIPlugin import and usage in get_temporal_client call ► tracecat/dsl/plugins.py     Delete TracecatPydanticAIPlugin file

[daryllimyt]

@codex review

[chatgpt-codex-connector]

Codex Review: Didn't find any major issues. Hooray!

Reviewed commit: 925bd09aa6

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[daryllimyt]

@codex review

[chatgpt-codex-connector]

Codex Review: Didn't find any major issues. 🎉

Reviewed commit: 4071928c3e

ℹ️ About Codex in GitHub

Your team has set up Codex to review pull requests in this repo. Reviews are triggered when you

• Open a pull request for review
• Mark a draft as ready
• Comment "@codex review".

If Codex has suggestions, it will comment; otherwise it will react with 👍.

Codex can also answer questions or update the PR. Try commenting "@codex address that feedback".