Context Window Exceeded / 413 Payload Too Large (context_length_exceeded)

Unbounded tool outputs, full HTML dumps, or multi-file diffs overflow 128K-200K token windows and trigger HTTP 400 context_length_exceeded or 413 Payload Too Large.

1. Immediate Code & SKU Fix

Replace With SKU: gemini-2.5-pro (1M-2M context) + Jina Reader / Firecrawl markdown compression

Install Command: npm install @google/genai

Required Env Vars: GEMINI_API_KEY

// Truncate tool stdout to <16KB or route >200K token payloads to gemini-2.5-pro via @google/genai

2. Verified Hot-Swap Fallback Route

JTBD: long-context-analysis

Primary: google-vertex → Fallback: anthropic

liveHealth: operational · autoActOk: true

Compliance blocks Anthropic

GET /api/rescue JSON (<2 KB)Falsify Pick (/api/falsify)

Matched Error String Signatures (5)

context_length_exceededmaximum context length413 Payload Too Largeprompt is too longstring_above_max_length

curl -s "https://getagentdepot.com/api/rescue?q=context_length_exceeded"

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