Claude Code 2.1.261 Gateway Policy Telemetry Operator Changes: What Proxies Must Fix

Claude Code 2.1.261 is not a model launch. It is more useful than that for teams running coding agents through a gateway, because the changelog names the exact places where enterprise proxying turns into false confidence: policy discovery, client identity, provider setup probes, and OpenTelemetry export format. The Claude Code 2.1.261 gateway policy telemetry operator story is that your gateway can now fail in ways the user finally sees, but only if you route and audit those side channels deliberately.

The release also raises inline output limits and adds skill-cost diagnostics. Those are helpful, but they are secondary. The operational work is to stop treating the coding-agent API path as a single model request. Claude Code now depends on several control-plane calls around the main turn, and a gateway that forwards completions while dropping those calls will make the agent look configured while the enterprise policy is missing.

Claude Code 2.1.261 gateway policy telemetry operator audit starts with the status path

The new "Organization policy" line in /status and claude doctor is the sharpest change. It says why the organization's policy could not be loaded, including the case where a proxy does not pass the endpoint through. That turns a quiet governance failure into a visible diagnostic.

For operators, the endpoint is not just another URL. If a company relies on managed settings, model allowlists, plugin controls, or spend rules, policy-fetch failure should be treated like a degraded control plane. A user can still type prompts, but the session is no longer running under the policy posture the organization expected.

The migration path is small and concrete. Before this release, many gateway checks stopped at the model endpoint: does the CLI reach the provider, does streaming work, does authentication pass. After 2.1.261, add a policy-read check to the health probe for managed Claude Code deployments. Run claude doctor or /status from behind the same proxy path used by developers, capture the organization-policy line, and alert if it reports a proxy pass-through failure. For teams using TheRouter as the primary OpenAI-compatible entry point, keep the coding-agent control-plane allowlist separate from the model-routing allowlist documented in the TheRouter docs, because a model path can be healthy while the policy path is blocked.

Client IP and proxy headers moved from plumbing to access control

Claude apps gateway now fixes client IP handling when a trusted proxy appends a port to X-Forwarded-For; with an access list set, an unreadable entry now gets 403. This is the kind of line that looks minor until an allowlist depends on it.

The operator consequence is named and testable. If an upstream proxy emits 203.0.113.10:53214 instead of 203.0.113.10, older parsing can misclassify the client. In one direction, that can reject a valid developer session. In the more dangerous direction, fallback logic may skip the access-list check or record the wrong tenant source. The new behavior makes unreadable entries fail closed with 403, which is the right default for an access-controlled gateway.

The cross-provider context matters because coding-agent stacks often run across multiple routes: direct Anthropic API, Bedrock, Vertex AI, and internal LLM gateways. Cloud load balancers, corporate proxies, and service meshes do not agree on forwarded-header formatting. A router should normalize X-Forwarded-For once at the edge, preserve the canonical client IP in its own trusted header, and avoid re-parsing arbitrary user-controlled header chains deeper in the stack.

For TheRouter users testing Claude Code behind a custom endpoint, the practical checklist is simple: confirm the Claude Code router path works for normal requests, then run a negative test with a malformed forwarded-for entry and expect 403, not silent fallback. If your logs cannot show which parsed IP caused the block, your audit trail is still incomplete.

Telemetry format mismatch can erase your billing and incident trail

The release fixes Claude apps gateway telling Claude Desktop to export OpenTelemetry as JSON even when the terminal CLI uses protobuf, causing protobuf-only collectors to reject Desktop telemetry. That is not a cosmetic mismatch. For coding-agent operators, telemetry is where you reconcile model choice, latency, retries, user attribution, and cost.

A gateway that routes model traffic correctly but drops Desktop spans will undercount the workflows most likely to be used by non-terminal users. Worse, the missing telemetry will look like normal absence unless the collector reports rejected payloads loudly. In a team environment, that means the CLI users appear measurable while Desktop users become an accounting blind spot.

The migration path after 2.1.261 is to pin telemetry protocol by deployment lane. If the collector accepts OTLP/protobuf only, verify that Desktop, terminal CLI, cloud sessions, and SDK sessions all emit the same protocol. If you support both JSON and protobuf, tag the ingestion path so billing and incident reports can distinguish a protocol conversion issue from a real request failure. The changelog also notes a fix for resumed sessions losing hook output and context around parallel tool calls; that belongs in the same audit, because hook output often carries policy or cost attribution that later turns into a dispute record.

Claude Code 2.1.261 gateway policy telemetry operator checks for provider setup are not optional

Bedrock setup now times out cleanly when AWS or a credential helper never responds, and its model checks no longer fail just because the path sits behind a TLS-inspecting proxy. The operator angle is not "better setup wizard." It is that provider-readiness probes need their own timeout and proxy test budget.

Before this fix, a hung helper could consume the user's attention indefinitely, and a TLS-inspection failure could be misread as Bedrock model unavailability. After the fix, gateway teams should separate three outcomes in logs and dashboards: credential-helper timeout, TLS/proxy validation failure, and provider model-list failure. They trigger different remediations. Retrying model routing will not fix a credential helper. Switching providers will not fix a corporate TLS policy that blocks the setup check.

bashOutputMaxChars and taskOutputMaxChars, now configurable up to 128K inline characters, deserve a guardrail in the same rollout. More inline command output improves debugging, but it also increases the chance that secrets, stack traces, or large generated artifacts enter the model context. If you raise these limits, pair the change with redaction rules and a lower limit for untrusted workspaces. /skill-doctor belongs here too: it gives teams a way to see which loaded skills consume context but never run, making prompt-cache and context-window costs easier to prune.

The routing change to make now

Treat Claude Code 2.1.261 as a control-plane release. Add four probes to the coding-agent gateway checklist: policy fetch visible in /status, forwarded-for parse failure returning 403, OTEL protocol accepted for every client surface, and Bedrock setup checks separated from model invocation checks.

This is also the right moment to stop merging all coding-agent events into a single "Claude Code request" metric. A useful router record should separate model calls, policy calls, plugin sync, telemetry export, provider setup probes, and remote-control delivery. The release includes fixes across all of those surfaces. If they collapse into one success counter, the next incident will tell you that Claude Code was "up" while the part your governance or billing process relied on was missing.