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docs(grayswan): describe what post_call sends to Cygnal - #1968
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Co-Authored-By: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>
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I'll fix CI failures and address comments from users with write access. I'll skip comments containing "(aside)".
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yucheng-berri
approved these changes
Oct 1, 2026
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Summary
Documents the Gray Swan post_call behavior shipped in BerriAI/litellm#43770 (LIT-6628). The page only said post_call scans "Model Outputs", so admins had no way to know that Cygnal now also receives the request conversation, the request
toolsand the answer's tool callsThe new "What Cygnal receives on
post_call" section under Choosing Guardrail Modes covers four things. A post_call-only setup now sends user prompts and tool results to Gray Swan. Tool-call-only answers are scanned, soblockcan return 400 andfail_open: falsecan fail those requests. The skip flags scope what is sent,scan_only_tool_resultsalso drops the requesttools, and Cygnal gets the answer alone when the conversation can't be read. Per-chunk streaming checks carry the conversation tooThe post_call row in the mode table is updated to match, and two existing typos are fixed ("recommmended", "treu")
scripts/check-writing-style.jsis clean on the page.scripts/check-docs.pyreports 4 errors, all indocs/harness/and the same on mainLink to Devin session: https://app.devin.ai/sessions/6b56dc5062414c51b44c3f65cbcad683
Open in Devin Desktop: https://app.devin.ai/desktop/session/6b56dc5062414c51b44c3f65cbcad683?variant=devin
Requested by: @yucheng-berri