Filter unsupported anthropic betas/fields on proxy forward#362
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braisedpork1964 wants to merge 1 commit into
Open
Filter unsupported anthropic betas/fields on proxy forward#362braisedpork1964 wants to merge 1 commit into
braisedpork1964 wants to merge 1 commit into
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Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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Only drops fields; core messages/tools/system untouched. |
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Pull request overview
This PR hardens the Anthropic /messages proxy-forwarding path by filtering out SDK/CLI-injected beta flags and top-level body fields that some upstream backends (notably Bedrock) reject, while allowing an explicit allowlist to pass through.
Changes:
- Add env-configurable allowlist filtering for
anthropic_beta(body) andanthropic-beta(header) before forwarding upstream. - Drop selected top-level Anthropic request body fields (default:
context_management) on/messagesrequests. - Introduce env vars
PROXY_ANTHROPIC_BETA_ALLOWLISTandPROXY_ANTHROPIC_DROP_FIELDSto control behavior.
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| # keep only the allowlist (see _FORWARD_ANTHROPIC_BETAS). | ||
| betas = request_data.get('anthropic_beta') | ||
| if isinstance(betas, list): | ||
| kept = [b for b in betas if b in _FORWARD_ANTHROPIC_BETAS] |
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| # Drop SDK-injected beta flags the upstream (e.g. Bedrock) rejects; | ||
| # keep only the allowlist (see _FORWARD_ANTHROPIC_BETAS). | ||
| betas = request_data.get('anthropic_beta') | ||
| if isinstance(betas, list): | ||
| kept = [b for b in betas if b in _FORWARD_ANTHROPIC_BETAS] | ||
| if kept: |
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Drop SDK-injected
anthropic_betaflags (keep allowlist) andcontext_managementbefore forwarding/messagesupstream, on both body and header. Configurable viaPROXY_ANTHROPIC_BETA_ALLOWLIST/PROXY_ANTHROPIC_DROP_FIELDS. No impact on lmdeploy/sglang.🤖 Generated with Claude Code