images.py DOX

Purpose

• Own the images.py helper module.
• This module resolves, compresses, and serializes image references for model inputs.
• Keep this file-level DOX profile synchronized with images.py because this directory is intentionally flat.

Ownership

• images.py owns the runtime implementation.
• images.py.dox.md owns durable notes about responsibilities, contracts, side effects, and verification for that implementation.
• Top-level functions:
• prepare_content(content: Any) -> Any
• is_local_ref(url: str) -> bool
• to_data_url(url: str) -> str
• resolve_ref(url: str) -> Path
• compress_image(image_data: bytes, max_pixels: int=..., quality: int=...) -> bytes: Compress an image by scaling it down and converting to JPEG with quality settings.

Runtime Contracts

• Helper modules own reusable framework APIs and must preserve public callers unless all callers, tests, and docs are updated together.
• Update this file whenever public functions, classes, persistence behavior, path/security assumptions, side effects, or cross-module contracts change.
• Observed side-effect areas: filesystem reads, network calls, settings/state persistence.
• Imported dependency areas include: PIL, base64, io, math, mimetypes, pathlib, typing, urllib.parse.

Key Concepts

• Important called helpers/classes observed in the source: url.lower, lowered.startswith, resolve_ref, base64.b64encode.decode, Path.expanduser, raw_path.startswith, FileNotFoundError, io.BytesIO, img.save, output.getvalue, prepare_content, url.startswith, mimetypes.guess_type, ValueError, url.lower.startswith, unquote, seen.add, math.sqrt, img.resize, img.convert.
• Keep request/response, tool, or helper semantics documented here at the same time as source changes.

Work Guidance

• Preserve public helper APIs used by core code and plugins unless every caller is updated.
• Keep path, auth, secret, persistence, network, and subprocess behavior explicit and bounded.
• Prefer adding cohesive helper functions here only when behavior is reused across modules.

Verification

• Run targeted tests for changed helper behavior; run security regressions for auth, filesystem, WebSocket, tunnel, upload, or secret-handling helpers.
• Related tests observed by source search:
  • tests/test_browser_agent_regressions.py
  • tests/test_image_get_security.py
  • tests/test_vision_load_image_refs.py

Child DOX Index

No child DOX files.