Anthropic - Claude Code Docs Changes 2025-10-27 18:02 UTC → 2025-10-28 18:02 UTC

110 anthropic_api_key: ${{ secrets.ANTHROPIC_API_KEY }}110 anthropic_api_key: ${{ secrets.ANTHROPIC_API_KEY }}

111 custom_instructions: "Follow our coding standards"111 custom_instructions: "Follow our coding standards"

112 max_turns: "10"112 max_turns: "10"

113 model: "claude-3-5-sonnet-20241022"113 model: "claude-sonnet-4-5-20250929"

114```114```

115 115 

116**GA version (v1.0):**116**GA version (v1.0):**

315```315```

316 316 

317<Note>317<Note>

318 Model IDs for Bedrock include region-specific prefixes and version suffixes (for example, `us.anthropic.claude-3-7-sonnet-20250219-v1:0`). Pass the desired model via your job configuration or prompt if your workflow supports it.318 Model IDs for Bedrock include region-specific prefixes and version suffixes (for example, `us.anthropic.claude-sonnet-4-5-20250929-v1:0`). Pass the desired model via your job configuration or prompt if your workflow supports it.

319</Note>319</Note>

320 320 

321### Google Vertex AI job example (Workload Identity Federation)321### Google Vertex AI job example (Workload Identity Federation)

494* `"ask"` asks the user to confirm the tool call in the UI.494* `"ask"` asks the user to confirm the tool call in the UI.

495 `permissionDecisionReason` is shown to the user but not to Claude.495 `permissionDecisionReason` is shown to the user but not to Claude.

496 496 

497Additionally, hooks can modify tool inputs before execution using `updatedInput`:

498 

499* `updatedInput` allows you to modify the tool's input parameters before the tool executes. This is a `Record<string, unknown>` object containing the fields you want to change or add.

500* This is most useful with `"permissionDecision": "allow"` to modify and approve tool calls.

501 

497```json theme={null}502```json theme={null}

498{503{

499 "hookSpecificOutput": {504 "hookSpecificOutput": {

500 "hookEventName": "PreToolUse",505 "hookEventName": "PreToolUse",

501 "permissionDecision": "allow" | "deny" | "ask",506 "permissionDecision": "allow"

502 "permissionDecisionReason": "My reason here"507 "permissionDecisionReason": "My reason here",

508 "updatedInput": {

509 "field_to_modify": "new value"

510 }

503 }511 }

504}512}

505```513```

295**Attributes**:295**Attributes**:

296 296 

297* All [standard attributes](#standard-attributes)297* All [standard attributes](#standard-attributes)

298* `model`: Model identifier (e.g., "claude-3-5-sonnet-20241022")298* `model`: Model identifier (e.g., "claude-sonnet-4-5-20250929")

299 299 

300#### Token Counter300#### Token Counter

301 301 

305 305 

306* All [standard attributes](#standard-attributes)306* All [standard attributes](#standard-attributes)

307* `type`: (`"input"`, `"output"`, `"cacheRead"`, `"cacheCreation"`)307* `type`: (`"input"`, `"output"`, `"cacheRead"`, `"cacheCreation"`)

308* `model`: Model identifier (e.g., "claude-3-5-sonnet-20241022")308* `model`: Model identifier (e.g., "claude-sonnet-4-5-20250929")

309 309 

310#### Code Edit Tool Decision Counter310#### Code Edit Tool Decision Counter

311 311 

375* All [standard attributes](#standard-attributes)375* All [standard attributes](#standard-attributes)

376* `event.name`: `"api_request"`376* `event.name`: `"api_request"`

377* `event.timestamp`: ISO 8601 timestamp377* `event.timestamp`: ISO 8601 timestamp

378* `model`: Model used (e.g., "claude-3-5-sonnet-20241022")378* `model`: Model used (e.g., "claude-sonnet-4-5-20250929")

379* `cost_usd`: Estimated cost in USD379* `cost_usd`: Estimated cost in USD

380* `duration_ms`: Request duration in milliseconds380* `duration_ms`: Request duration in milliseconds

381* `input_tokens`: Number of input tokens381* `input_tokens`: Number of input tokens

394* All [standard attributes](#standard-attributes)394* All [standard attributes](#standard-attributes)

395* `event.name`: `"api_error"`395* `event.name`: `"api_error"`

396* `event.timestamp`: ISO 8601 timestamp396* `event.timestamp`: ISO 8601 timestamp

397* `model`: Model used (e.g., "claude-3-5-sonnet-20241022")397* `model`: Model used (e.g., "claude-sonnet-4-5-20250929")

398* `error`: Error message398* `error`: Error message

399* `status_code`: HTTP status code (if applicable)399* `status_code`: HTTP status code (if applicable)

400* `duration_ms`: Request duration in milliseconds400* `duration_ms`: Request duration in milliseconds

357| `SLASH_COMMAND_TOOL_CHAR_BUDGET` | Maximum number of characters for slash command metadata shown to [SlashCommand tool](/en/docs/claude-code/slash-commands#slashcommand-tool) (default: 15000) |357| `SLASH_COMMAND_TOOL_CHAR_BUDGET` | Maximum number of characters for slash command metadata shown to [SlashCommand tool](/en/docs/claude-code/slash-commands#slashcommand-tool) (default: 15000) |

358| `USE_BUILTIN_RIPGREP` | Set to `0` to use system-installed `rg` intead of `rg` included with Claude Code |358| `USE_BUILTIN_RIPGREP` | Set to `0` to use system-installed `rg` intead of `rg` included with Claude Code |

359| `VERTEX_REGION_CLAUDE_3_5_HAIKU` | Override region for Claude 3.5 Haiku when using Vertex AI |359| `VERTEX_REGION_CLAUDE_3_5_HAIKU` | Override region for Claude 3.5 Haiku when using Vertex AI |

360| `VERTEX_REGION_CLAUDE_3_5_SONNET` | Override region for Claude Sonnet 3.5 when using Vertex AI |

361| `VERTEX_REGION_CLAUDE_3_7_SONNET` | Override region for Claude 3.7 Sonnet when using Vertex AI |360| `VERTEX_REGION_CLAUDE_3_7_SONNET` | Override region for Claude 3.7 Sonnet when using Vertex AI |

362| `VERTEX_REGION_CLAUDE_4_0_OPUS` | Override region for Claude 4.0 Opus when using Vertex AI |361| `VERTEX_REGION_CLAUDE_4_0_OPUS` | Override region for Claude 4.0 Opus when using Vertex AI |

363| `VERTEX_REGION_CLAUDE_4_0_SONNET` | Override region for Claude 4.0 Sonnet when using Vertex AI |362| `VERTEX_REGION_CLAUDE_4_0_SONNET` | Override region for Claude 4.0 Sonnet when using Vertex AI |

59| `AWS_PROFILE` | AWS profile for Bedrock authentication | | `"your-profile"` |59| `AWS_PROFILE` | AWS profile for Bedrock authentication | | `"your-profile"` |

60| `CLOUD_ML_REGION` | Region for Vertex AI | | `"global"` or `"us-east5"` |60| `CLOUD_ML_REGION` | Region for Vertex AI | | `"global"` or `"us-east5"` |

61| `ANTHROPIC_VERTEX_PROJECT_ID` | GCP project ID for Vertex AI | | `"your-project-id"` |61| `ANTHROPIC_VERTEX_PROJECT_ID` | GCP project ID for Vertex AI | | `"your-project-id"` |

62| `ANTHROPIC_MODEL` | Override primary model | Override model ID | `"us.anthropic.claude-3-7-sonnet-20250219-v1:0"` |62| `ANTHROPIC_MODEL` | Override primary model | Override model ID | `"us.anthropic.claude-sonnet-4-5-20250929-v1:0"` |

63| `ANTHROPIC_SMALL_FAST_MODEL` | Override small/fast model | Optional | `"us.anthropic.claude-3-5-haiku-20241022-v1:0"` |63| `ANTHROPIC_SMALL_FAST_MODEL` | Override small/fast model | Optional | `"us.anthropic.claude-3-5-haiku-20241022-v1:0"` |

64| `CLAUDE_CODE_SKIP_AUTH_LOGIN` | Disable all prompts to login | Optional | `"1"` or `"true"` |64| `CLAUDE_CODE_SKIP_AUTH_LOGIN` | Disable all prompts to login | Optional | `"1"` or `"true"` |

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