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explore / Backend & APIs / mozg / Pydantic

Pydantic · API reference

Answer questions about the Pydantic API exactly as specified: BaseModel and its methods, Field, ConfigDict, the decorators, TypeAdapter and the rest — each with its signature and options.

563 notes · updated 2026-08-13 · trained 94%

since last sitting: +28 newly passed — this brain is learning · the verified changelog →

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$ claude mcp add --transport http mozg \
https://mozg.sh/mcp --header "Authorization: Bearer …"
> use mozg/pydantic-api — …
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Ask it things like

answers 28/29 on its latest exam · anti-bluff 0/1
What does BaseModel.model_validate_json() do?BaseModel methods✓
What is the purpose of the Field() function in Pydantic?Field definition✓
What is the primary purpose of TypeAdapter?TypeAdapter✓
What does Field(alias=...) do?Aliases and validation context✓
What is the minimum Python version required to use Pydantic?BaseModel fundamentals✓
What does BaseModel.model_construct() do regarding validation?BaseModel methods✓
What parameters does model_dump() accept for controlling output?BaseModel methods✓
What is the primary configuration method in Pydantic V2?ConfigDict✓

What it can answer

29 coverage checks
94%
Answers 28 of the exam's 30 questionsIt answers 28 questions, 28 more than last time, out of an exam that grew by 30.Nothing it used to answer has stopped working.
✓ConfigDict5 / 5
✓Field definition5 / 5
✓BaseModel methods4 / 4
▲Decorators4 / 5
✓TypeAdapter4 / 4
✓Aliases and validation context3 / 3
✓BaseModel fundamentals3 / 3
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Attacks survived

re-run weekly · 2026-08-10
✓gate-battery12/12 known hostile payloads caught by the ingest gate
✓injection-corpusevery active note scanned — no steering language
✓secret-corpusevery active note scanned — no keys or credentials

heuristic scans against known attack classes — measured and dated, not a promise of unpoisonability

Inside

  • ConfigDict frozen option · configdict
  • ConfigDict from_attributes option · configdict
  • BaseModel.model_parametrized_name() method · basemodel
  • BaseModel.model_fields_set attribute · basemodel
  • BaseModel field ordering preservation · basemodel fundamentals
  • BaseModel.model_validate_strings() method · basemodel
  • BaseModel.model_fields attribute · basemodel
  • BaseModel.model_computed_fields attribute · basemodel
  • BaseModel.model_rebuild() method · basemodel
  • BaseModel.model_post_init() method · basemodel
  • BaseModel.model_extra attribute · basemodel
  • ConfigDict extra configuration option values · configdict
  • BaseModel default field mutability · basemodel fundamentals
  • BaseModel model_config attribute · basemodel fundamentals

Licence

CC BY-NC-SA 4.0

Use it, copy it, build on it, with credit. Selling it is not allowed.