latest copilot (1.0.65) not working

### Describe the bug

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╰─╯╰─╯ Copilot v1.0.65 uses AI.
█ ▘▝ █ /experimental
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● No copilot-instructions.md found. Run /init to generate.

● Tip: /remote
└ Toggle remote control from GitHub web and mobile

❯ review last commit

◉ Working esc cancel Claude Sonnet 4.6 · medium · (0%)

Then it use a lot of cpu and does nothing

PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
2668312 foob 20 0 11.2g 227904 90216 S 62.6 0.2 2:17.65 MainThread

tested v1.0.61 and it works.

### Affected version

_No response_

### Steps to reproduce the behavior

_No response_

### Expected behavior

_No response_

### Additional context

2026-06-27T09:22:40.299Z [DEBUG] Using GitHub OAuth token for Copilot API

2026-06-27T09:22:40.299Z [DEBUG] Creating copilot-client for integration ID copilot-developer-cli with token authentication. User-agent: copilot/1.0.65 (client/github/cli linux v24.16.0) term/unknown

2026-06-27T09:22:40.300Z [DEBUG] Successfully listed 30 models

2026-06-27T09:22:40.300Z [DEBUG] Listed models: [claude-opus-4.6,Claude Opus 4.6], [claude-opus-4.7,Claude Opus 4.7], [claude-sonnet-4.6,Claude Sonnet 4.6], [gpt-5.3-codex,GPT-5.3-Codex], [gpt-5.4-mini,GPT-5.4 mini], [gpt-5.4-nano,GPT-5.4 nano], [gpt-5.4,GPT-5.4], [gpt-5.5,GPT-5.5], [gpt-5-mini,GPT-5 mini], [gpt-4o-mini-2024-07-18,GPT-4o mini], [gpt-4o-2024-11-20,GPT-4o], [gpt-4o-2024-08-06,GPT-4o], [text-embedding-3-small,Embedding V3 small], [text-embedding-3-small-inference,Embedding V3 small (Inference)], [claude-sonnet-4.5,Claude Sonnet 4.5], [claude-opus-4.5,Claude Opus 4.5], [claude-haiku-4.5,Claude Haiku 4.5], [gemini-2.5-pro,Gemini 2.5 Pro], [gpt-4.1-2025-04-14,GPT-4.1], [gpt-41-copilot,GPT-4.1 Copilot], [gpt-3.5-turbo-0613,GPT 3.5 Turbo], [gpt-4,GPT 4], [gpt-4-0613,GPT 4], [gpt-4o-2024-05-13,GPT-4o], [gpt-4-o-preview,GPT-4o], [gpt-4.1,GPT-4.1], [gpt-3.5-turbo,GPT 3.5 Turbo], [gpt-4o-mini,GPT-4o mini], [gpt-4o,GPT-4o], [text-embedding-ada-002,Embedding V2 Ada]

2026-06-27T09:22:40.301Z [DEBUG] Applied model capabilities override: {"family":"claude-sonnet-4.6","limits":{"max_context_window_tokens":264000,"max_non_streaming_output_tokens":16000,"max_output_tokens":64000,"max_prompt_tokens":200000,"vision":{"max_prompt_image_size":3145728,"max_prompt_images":5,"supported_media_types":["image/jpeg","image/png","image/webp","image/gif","application/pdf"]}},"object":"model_capabilities","supports":{"adaptive_thinking":true,"max_thinking_budget":32000,"min_thinking_budget":1024,"parallel_tool_calls":true,"reasoning_effort":["low","medium","high","max"],"streaming":true,"structured_outputs":true,"tool_calls":true},"tokenizer":"o200k_base","type":"chat"}

2026-06-27T09:22:40.301Z [DEBUG] Got model info: {

  "billing": {

    "restricted_to": [

      "pro",

      "pro_plus",

      "individual_trial",

      "business",

      "enterprise",

      "max"

    ],

    "token_prices": {

      "batch_size": 1000000,

      "default": {

        "cache_read_price": 30,

        "cache_write_price": 375,

        "input_price": 300,

        "max_prompt_tokens": 200000,

        "output_price": 1500

      },

      "long_context": {

        "cache_read_price": 30,

        "cache_write_price": 375,

        "input_price": 300,

        "max_prompt_tokens": 936000,

        "output_price": 1500

      }

    }

  },

  "capabilities": {

    "family": "claude-sonnet-4.6",

    "limits": {

      "max_context_window_tokens": 264000,

      "max_non_streaming_output_tokens": 16000,

      "max_output_tokens": 64000,

      "max_prompt_tokens": 200000,

      "vision": {

        "max_prompt_image_size": 3145728,

        "max_prompt_images": 5,

        "supported_media_types": [

          "image/jpeg",

          "image/png",

          "image/webp",

          "image/gif",

          "application/pdf"

        ]

      }

    },

    "object": "model_capabilities",

    "supports": {

      "adaptive_thinking": true,

      "max_thinking_budget": 32000,

      "min_thinking_budget": 1024,

      "parallel_tool_calls": true,

      "reasoning_effort": [

        "low",

        "medium",

        "high",

        "max"

      ],

      "streaming": true,

      "structured_outputs": true,

      "tool_calls": true

    },

    "tokenizer": "o200k_base",

    "type": "chat"

  },

  "id": "claude-sonnet-4.6",

  "is_chat_default": false,

  "is_chat_fallback": false,

  "model_picker_category": "versatile",

  "model_picker_enabled": true,

  "model_picker_price_category": "medium",

  "name": "Claude Sonnet 4.6",

  "object": "model",

  "policy": {

    "state": "enabled",

    "terms": "Enable access to the latest Claude Sonnet 4.6 model from Anthropic. [Learn more about how GitHub Copilot serves Claude Sonnet 4.6](https://gh.io/copilot-claude-opus)."

  },

  "preview": false,

  "supported_endpoints": [

    "/chat/completions",

    "/v1/messages"

  ],

  "vendor": "Anthropic",

  "version": "claude-sonnet-4.6"

}

2026-06-27T09:22:48.972Z [DEBUG] [Octokit] request

2026-06-27T09:22:48.975Z [DEBUG] [rust:log] starting new connection 'Some("api.github.com")' {"log.target":"reqwest::connect","log.module_path":"reqwest::connect","log.file":"/home/runner/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/reqwest-0.13.4/src/connect.rs","log.line":929}

2026-06-27T09:22:48.975Z [DEBUG] [rust:hyper_util::client::legacy::connect::http] connecting to 140.82.116.5:443

2026-06-27T09:22:48.978Z [DEBUG] [rust:hyper_util::client::legacy::connect::http] connected to 140.82.116.5:443

2026-06-27T09:22:49.414Z [DEBUG] [rust:hyper_util::client::legacy::pool] pooling idle connection for ("https", api.github.com)

2026-06-27T09:22:49.414Z [INFO] [Octokit] POST /graphql - 200 with id 163E:128A50:5DA289C:5F79229:6A3F9669 in 442ms

2026-06-27T09:23:03.590Z [DEBUG] [rust:runtime::api_telemetry_queue] [telemetry-queue] Flushing 3 events (20252 B → 2828 B gzipped)

2026-06-27T09:23:03.591Z [DEBUG] [rust:hyper_util::client::legacy::pool] reuse idle connection for ("https", telemetry.business.githubcopilot.com)

2026-06-27T09:23:03.881Z [DEBUG] [rust:hyper_util::client::legacy::pool] pooling idle connection for ("https", telemetry.business.githubcopilot.com)

2026-06-27T09:23:48.957Z [DEBUG] [Octokit] request

2026-06-27T09:23:48.960Z [DEBUG] [rust:log] starting new connection 'Some("api.github.com")' {"log.target":"reqwest::connect","log.module_path":"reqwest::connect","log.file":"/home/runner/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/reqwest-0.13.4/src/connect.rs","log.line":929}

2026-06-27T09:23:48.960Z [DEBUG] [rust:hyper_util::client::legacy::connect::http] connecting to 140.82.116.5:443

2026-06-27T09:23:48.963Z [DEBUG] [rust:hyper_util::client::legacy::connect::http] connected to 140.82.116.5:443

2026-06-27T09:23:49.523Z [DEBUG] [rust:hyper_util::client::legacy::pool] pooling idle connection for ("https", api.github.com)

2026-06-27T09:23:49.523Z [INFO] [Octokit] POST /graphql - 200 with id 23FC:262C01:63B4C40:6588B29:6A3F96A4 in 566ms

2026-06-27T09:24:48.957Z [DEBUG] [Octokit] request

2026-06-27T09:24:48.967Z [DEBUG] [rust:log] starting new connection 'Some("api.github.com")' {"log.target":"reqwest::connect","log.module_path":"reqwest::connect","log.file":"/home/runner/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/reqwest-0.13.4/src/connect.rs","log.line":929}

2026-06-27T09:24:48.968Z [DEBUG] [rust:hyper_util::client::legacy::connect::http] connecting to 140.82.116.5:443

2026-06-27T09:24:48.968Z [DEBUG] [rust:hyper_util::client::legacy::connect::http] connected to 140.82.116.5:443

2026-06-27T09:24:49.375Z [DEBUG] [rust:hyper_util::client::legacy::pool] pooling idle connection for ("https", api.github.com)

2026-06-27T09:24:49.375Z [INFO] [Octokit] POST /graphql - 200 with id 203F:157E5D:66003B4:67D5059:6A3F96E1 in 418ms

2026-06-27T09:25:48.963Z [DEBUG] [Octokit] request

2026-06-27T09:25:48.966Z [DEBUG] [rust:log] starting new connection 'Some("api.github.com")' {"log.target":"reqwest::connect","log.module_path":"reqwest::connect","log.file":"/home/runner/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/reqwest-0.13.4/src/connect.rs","log.line":929}

2026-06-27T09:25:48.966Z [DEBUG] [rust:hyper_util::client::legacy::connect::http] connecting to 140.82.116.6:443

2026-06-27T09:25:48.969Z [DEBUG] [rust:hyper_util::client::legacy::connect::http] connected to 140.82.116.6:443

2026-06-27T09:25:49.425Z [DEBUG] [rust:hyper_util::client::legacy::pool] pooling idle connection for ("https", api.github.com)

2026-06-27T09:25:49.426Z [INFO] [Octokit] POST /graphql - 200 with id 3B3F:262C01:63D327D:65A7DCA:6A3F971D in 462ms

No source file or test is identified. Reproduce the hang with `review last commit` on Copilot CLI 1.0.65, compare it with 1.0.61, and inspect the supplied debug logs around the repeated GitHub GraphQL requests; done means the command completes without sustained high CPU usage.

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