docs(router): circuit breaker in subgraph execution

[Copilot]

• Merge main branch and resolve conflicts (d328cf2)
• Update circuit breaker docs for router PR #900 field type changes (74c48ab)
• Add error_status_codes field documentation to traffic_shaping.mdx
• Add error_status_codes to the configuration table in performance-tuning.mdx
• Run oxfmt - formatting verified

[github-actions]

Deployment	URL
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[Copilot]

Pull request overview

Adds Router documentation describing the new circuit breaker behavior for subgraph execution and exposes the related traffic_shaping.circuit_breaker configuration in the reference docs (supporting graphql-hive/router#900).

Changes:

• Add a new “Circuit Breaker” section to the Performance Tuning guide (states, configuration examples, tuning guidance, and a metric mention).
• Extend the traffic_shaping configuration reference to document the circuit_breaker option and its fields.
• Update the “Outbound Options” section to include circuit_breaker among globally/per-subgraph overrideable settings.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 3 comments.

File	Description
packages/documentation/content/docs/router/guides/performance-tuning.mdx	Introduces circuit breaker guide content, examples, and metrics/tuning notes.
packages/documentation/content/docs/router/configuration/traffic_shaping.mdx	Documents traffic_shaping.*.circuit_breaker config schema and links to the tuning guide.

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[ardatan]

@copilot fix linting

[Copilot]

@copilot fix linting

Fixed in d96c94a — ran oxfmt to correct table column alignment and YAML comment spacing in performance-tuning.mdx.

[ardatan]

@copilot resolve the merge conflicts in this pull request, and update documentation based on the recent changes in graphql-hive/router#900

[Copilot]

@copilot resolve the merge conflicts in this pull request, and update documentation based on the recent changes in graphql-hive/router#900

Done in 74c48ab. Merged main into the branch (resolved a conflict in traffic_shaping.mdx where the outbound options section diverged) and updated the circuit breaker docs based on router PR #900's recent changes:

• circuit_breaker.enabled type updated to boolean | null — at the subgraph level, omitting this field now inherits the global value (instead of defaulting to false)
• circuit_breaker.volume_threshold type updated to integer | null with the same inheritance note
• All subgraph-level field descriptions clarify they fall back to the global config when omitted
• Example YAML updated to demonstrate clean field inheritance (no redundant enabled: true in subgraph override)