PR Summary

Low Risk
Two numeric limits in the provider registry; no attachment pipeline or strategy changes, with tests noted as updated in the PR description.

Overview
Lowers agent-block file attachment maxBytes in PROVIDER_DEFINITIONS for two providers so pre-upload validation matches what the backends actually accept.

Google (Gemini) drops from 100MB to 50MB (files-api strategy unchanged). Oversized PDFs were passing the app gate, then failing late at generateContent after File API upload work.

vLLM drops from 50MB to 25MB (remote-url unchanged), aligning with typical fetch timeouts and Baseten’s ceiling. Anything that reads limits via getProviderFileAttachment—including /models provider pages—picks up the new caps automatically.

^{Reviewed by Cursor Bugbot for commit 98008a9. Configure here.}

Greptile Summary

This PR tightens the fileAttachment.maxBytes ceilings for two providers in models.ts to align with documented provider constraints.

• Gemini: reduced from 100 MB to 50 MB, matching the Gemini File API's documented 50 MB hard cap on PDFs — previously a 50–100 MB PDF would pass the client-side gate, be uploaded, then fail at generateContent.
• vLLM: reduced from 50 MB to 25 MB, aligning with the default 5-second VLLM_IMAGE_FETCH_TIMEOUT and matching the Baseten provider ceiling.

Confidence Score: 5/5

• Safe to merge — two numeric constant corrections with no logic changes, unit tests pass, and the values now match documented provider limits.
• Both changes reduce ceiling values to documented provider limits, eliminating late-stage failures where files would pass the client gate, get uploaded, and then be rejected by the provider API. The diff touches only two constant expressions in a single file; no control flow, type definitions, or external interfaces are affected.
• No files require special attention.

Important Files Changed

Flowchart

%%{init: {'theme': 'neutral'}}%%
flowchart TD
    A[File Attachment Upload Request] --> B{Check maxBytes gate}
    B -->|File size exceeds limit| C[Reject early with clear error]
    B -->|File size within limit| D{Provider strategy?}
    D -->|Gemini: files-api\n≤ 50 MB| E[Upload to Gemini File API\nPoll for ACTIVE state\ncall generateContent ✅]
    D -->|vLLM: remote-url\n≤ 25 MB| F[Pass URL to vLLM\nFetched within 5s timeout ✅]
    D -->|Other providers| G[Provider-specific handling]
    style C fill:#f66,color:#fff
    style E fill:#6c6,color:#fff
    style F fill:#6c6,color:#fff

%%{init: {'theme': 'base', 'themeVariables': {"darkMode": true, "background": "#0d1117", "primaryColor": "#21262d", "primaryTextColor": "#e6edf3", "primaryBorderColor": "#8b949e", "lineColor": "#8b949e", "textColor": "#e6edf3", "edgeLabelBackground": "#161b22", "actorBkg": "#21262d", "actorBorder": "#8b949e", "actorTextColor": "#e6edf3", "actorLineColor": "#8b949e", "signalColor": "#8b949e", "signalTextColor": "#e6edf3", "noteBkgColor": "#373320", "noteBorderColor": "#d4a72c", "noteTextColor": "#f0e6c0", "labelBoxBkgColor": "#21262d", "labelBoxBorderColor": "#8b949e", "labelTextColor": "#e6edf3", "loopTextColor": "#e6edf3", "activationBkgColor": "#30363d", "activationBorderColor": "#8b949e"}}}%%
flowchart TD
    A[File Attachment Upload Request] --> B{Check maxBytes gate}
    B -->|File size exceeds limit| C[Reject early with clear error]
    B -->|File size within limit| D{Provider strategy?}
    D -->|Gemini: files-api\n≤ 50 MB| E[Upload to Gemini File API\nPoll for ACTIVE state\ncall generateContent ✅]
    D -->|vLLM: remote-url\n≤ 25 MB| F[Pass URL to vLLM\nFetched within 5s timeout ✅]
    D -->|Other providers| G[Provider-specific handling]
    style C fill:#f66,color:#fff
    style E fill:#6c6,color:#fff
    style F fill:#6c6,color:#fff

_{Reviews (2): Last reviewed commit: "improvement(providers): tighten Gemini a..." | Re-trigger Greptile}

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Project	Deployment	Actions	Updated (UTC)
docs	Skipped		Jun 16, 2026 5:26pm

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