pydantic-ai
Write accurate Pydantic AI code from the start. Up-to-date patterns, decision trees, and common gotchas for agents, tools, structured output
Open source Repository Open in the app JSON README (API)
About
Write accurate Pydantic AI code from the start. Up-to-date patterns, decision trees, and common gotchas for agents, tools, structured output, streaming, and multi-agent apps.
Details
- Kind
- Plugins
- Topic
- AI, RAG & memory
- Publisher
- pydantic
- Origin
- marketplace
- Category
- ferramentas
- Stars
- 128
- Forks
- 4
- Open pull requests
- 4
- Last push
- 2026-09-04T06:38:38Z
- Repository state
- ativo
- Language
- Python
- License
- MIT
- Added
- 2026-08-30 01:48:58
- Updated
- 2026-08-30 01:48:58
- Origin id
pydantic/skills/pydantic-ai
README
# Pydantic Skills
Logfire, Pydantic AI, and Pydantic plugins for [Claude Code](https://claude.com/claude-code), [Codex](https://openai.com/codex), and [Cursor](https://cursor.com). Instrument your code with Logfire, query and export the resulting telemetry, build LLM agents with Pydantic AI, and validate data with Pydantic.
## Plugins
| Plugin | Hosts | Description | Capabilities |
| --------------------------------------------- | -------------------------- | --------------------------------------------------- | ------------------------------------------------------------------------------------ |
| [logfire](plugins/logfire/) | Claude Code, Codex, Cursor | Add Logfire observability and query/debug telemetry | Claude commands `/instrument`, `/debug`, `/query`; Codex/Cursor skills and MCP tools |
| [logfire-exporter](plugins/logfire-exporter/) | Codex | Export Codex activity traces to Logfire | Codex lifecycle hooks |
| [ai](plugins/ai/) | Claude Code | Build AI agents with Pydantic AI | Pydantic AI skill docs |
| [pydantic-ai-harness](plugins/pydantic-ai-harness/) | Claude Code | Extend Pydantic AI agents with harness capabilities (Code Mode) | Pydantic AI Harness skill docs |
| [pydantic](plugins/pydantic/) | Claude Code | Validate and serialize data with Pydantic | Pydantic skill docs |
## Install In Claude Code
Add this marketplace to Claude Code:
```
claude plugin marketplace add pydantic/skills
```
Then install a plugin:
```
claude plugin install logfire@pydantic-skills
claude plugin install ai@pydantic-skills
claude plugin install pydantic-ai-harness@pydantic-skills
claude plugin install pydantic@pydantic-skills
```
## Install In Codex
Add the published Pydantic marketplace to Codex:
```bash
codex plugin marketplace add pydantic/skills
```
Then open Codex's plugin UI and enable the plugins you want from the **Pydantic** marketplace:
- **Logfire** - installs Logfire skills and the hosted Logfire MCP server.
- **Logfire Exporter** - installs Codex lifecycle hooks that export completed Codex turns and tool calls to Logfire.
Configure **Logfire Exporter** with a Logfire write token in your environment or
`${XDG_CONFIG_HOME:-~/.config}/logfire-exporter/config.env`. Restart Codex after configuration, and run `/hooks` if
Codex asks you to review or trust the new hooks.
To use the EU Logfire MCP endpoint in Codex without editing plugin files, replace the MCP entry and re-authenticate:
```bash
codex mcp remove logfire
codex mcp add logfire --url https://logfire-eu.pydantic.dev/mcp
codex mcp login logfire
codex mcp get logfire
```
Start a new Codex conversation after switching so the MCP tools reload.
## Install In Cursor
Install the Logfire plugin from the published [pydantic/skills](https://github.com/pydantic/skills) repository:
```bash
git clone https://github.com/pydantic/skills.git
mkdir -p ~/.cursor/plugins/local
cp -R skills/plugins/logfire ~/.cursor/plugins/local/logfire
```
Then restart Cursor or run **Developer: Reload Window**. The plugin configures:
- display name **Logfire**
- Logfire skills for instrumentation, querying, and UI-opening workflows
- hosted Logfire MCP server from `mcp.json`
The Logfire MCP server requires normal Logfire authentication, such as `logfire auth` or a suitable `LOGFIRE_TOKEN`.
## Cross-Agent Skills
The `skills/` directory contains standalone SKILL.md files compatible with 30+ agents via the [agentskills.io](https://agentskills.io) standard - including Codex, Cursor, Gemini CLI, and Claude Code.
Released skills are also published through the [Agent Skills Discovery](https://github.com/cloudflare/agent-skills-discovery-rfc) API at
[`pydantic.dev/.well-known/agent-skills`](https://pydantic.dev/.well-known/agent-skills). After a change reaches `main` and passes this repository's sync check, CI asks
`pydantic/unified-docs` to build and verify immutable, content-addressed artifacts from that exact commit. The generated discovery index and archives are deployment
artifacts; do not maintain copies in this repository.
| Skill | Description |
| ------------------------------------------------------------------ | ----------------------------------------------------------------------------------- |
| [logfire-setup](skills/logfire-setup/) | Set up Logfire by routing application, infrastructure, and eval projects |
| [logfire-instrumentation](skills/logfire-instrumentation/) | Add Logfire observability to Python, JS/TS, and Rust apps |
| [logfire-infrastructure](skills/logfire-infrastructure/) | Monitor hosts, containers, Kubernetes, databases, and cloud infrastructure |
| [logfire-evals](skills/logfire-evals/) | Add dataset-based evaluations for AI and agent behavior |
| [logfire-query](skills/logfire-query/) | Query and analyze Logfire traces, logs, spans, metrics, and activity data |
| [logfire-ui](skills/logfire-ui/) | Open Logfire project pages, live views, traces, and Explore filters |
| [building-pydantic-ai-agents](skills/building-pydantic-ai-agents/) | Build LLM-powered agents with Pydantic AI — tools, capabilities, streaming, testing |
| [pydantic-ai-harness](skills/pydantic-ai-harness/) | Extend Pydantic AI agents with harness capabilities like Code Mode (sandboxed `run_code`) |
| [pydantic](skills/pydantic/) | Validate and serialize data with Pydantic models, constraints, and custom validators |