[vaibhavsrv]

Why this matters

In ods/bin/pixel_provider/runtime_gateway.py, the validate_request routine admits the reasoning model parameter reasoning_effort without verifying that its value belongs to the allowed enumeration. When callers supply unsupported reasoning levels (e.g. "extreme", "none", or empty strings) or non-string types, the request is forwarded to backend inference workers and causes upstream argument rejection or unhandled 500 exceptions.

This change surgically enforces that reasoning_effort must be one of ('low', 'medium', 'high') in validate_request, rejecting malformed or unsupported values with invalid-inference-request. Valid reasoning effort options remain fully supported.

Validation

• Baseline reproduction: Payloads specifying reasoning_effort: "extreme", reasoning_effort: "", or reasoning_effort: 123 were accepted by validate_request.
• Post-fix behavior: Requests with unsupported reasoning levels or non-string types raise RuntimeErrorCode('invalid-inference-request'). Permitted values ("low", "medium", "high") pass cleanly.
• Telemetry: Pixel gateway suites: 2 passed. New-test Ruff, ShellCheck, and diff checks pass; new regressions wired into Linux CI.

Overlap check

Recent PRs #6334 (logprobs bounds in runtime gateway), #6333 (stop parameter validation in runtime gateway), and #6332 (presence/frequency penalty bounds in runtime gateway) cover distinct request fields. This PR isolates verification to reasoning_effort in ods/bin/pixel_provider/runtime_gateway.py without overlap.

Risk / AI disclosure

AI-assisted investigation, implementation and CLI regressions. This strengthens an API validation check, not runtime admission. Independent human review and platform/runtime qualification remain gates. No running configuration, deployment or upstream merge changed.

Follow-up integration evidence

Composed with #6334 at f7cc1af without conflicts. Production and test diffs passed together; gateway and runtime checks remain intact.
Backlog composition was local-only (production/test diffs, excluding workflow/Makefile wiring); it is not an upstream merge or independent human approval. Declared live-review gates remain open.

[Lightheartdevs]

Thanks for this contribution. public-beta was promoted into main on 2026-09-24 and no longer receives changes, so we're closing pull requests that target it. This isn't a judgment on the change itself. If it's still needed, please rebase onto main and open a focused PR. See #7253 for details and the contribution policy.