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tools Claude Developer Platform · in the page managed-agents/tools …ts/tools description: Configure tools available to your agent. featureMetadata: topic: title: Managed Agents url: https://platform.claude.com/docs/en/managed-agents/overview status: beta…

tools-web-restrictions Claude Developer Platform · in the page managed-agents/tools-web-restrictions …s can reach, cap fetched content, and localize search results. featureMetadata: topic: title: Managed Agents url: https://platform.claude.com/docs/en/managed-agents/overview status: beta…

vaults Claude Developer Platform · in the page managed-agents/vaults …ription: Register per-user credentials when creating sessions. featureMetadata: topic: title: Managed Agents url: https://platform.claude.com/docs/en/managed-agents/overview status: beta…

webhooks Claude Developer Platform · in the page managed-agents/webhooks …ription: Get notified when major events occur without polling. featureMetadata: topic: title: Managed Agents url: https://platform.claude.com/docs/en/managed-agents/overview status: beta…

workflow-runs Claude Developer Platform · in the page managed-agents/workflow-runs …k is done, requests while a run is open, budgets, and limits." featureMetadata: topic: title: Managed Agents url: https://platform.claude.com/docs/en/managed-agents/overview status: beta…

overview Claude Developer Platform · in the page release-notes/overview …/compliance/apps/sessions/local/{session_id}` retrieves one session's metadata, and `GET /v1/compliance/apps/sessions/local/{session_id}/messages` returns its transcript, all with your existing Compli…

How the agent loop works Claude Code CLI · in the page agent-sdk/agent-loop …temMessage`](#message-types) with subtype `"init"` containing session metadata. 2. **Evaluate and respond.** Claude evaluates the current state and determines how to proceed. It may respond with text,…

Give Claude custom tools Claude Code CLI · in the page agent-sdk/custom-tools …contextprotocol.io/docs/concepts/tools#tool-annotations) are optional metadata describing how a tool behaves. Pass them as the fifth argument to `tool()` helper in TypeScript or via the `annotations`…

Rewind file changes with checkpointing Claude Code CLI · in the page agent-sdk/file-checkpointing …the tests. This pattern stores all checkpoint UUIDs in an array with metadata. After the session completes, you can rewind to any previous checkpoint: ```python Python theme={null} import asyncio fr…

Modifying system prompts Claude Code CLI · in the page agent-sdk/modifying-system-prompts …wn file with [frontmatter](/docs/en/output-styles.md#frontmatter) for metadata, followed by the prompt content. Save it to `~/.claude/output-styles/` for a user-level style available in every project,…

Observability with OpenTelemetry Claude Code CLI · in the page agent-sdk/observability …d. The following example renames the service and attaches deployment metadata. These values are applied as OpenTelemetry resource attributes on every span, metric, and event the agent emits: ```pyth…

Agent SDK reference - Python Claude Code CLI · in the page agent-sdk/python …c__multiply"], ) ``` ### `list_sessions()` Lists past sessions with metadata. Filter by project directory or list sessions across all projects. Synchronous; returns immediately. ```python theme={nu…

Persist sessions to external storage Claude Code CLI · in the page agent-sdk/session-storage …tSessionSummaries` | No | By `listSessions({ sessionStore })` to read metadata for all sessions in one call. Maintain the summaries inside `append`. If undefined, listing falls back to `listSessions`…

Extend agents with skills Claude Code CLI · in the page agent-sdk/skills …discovered**: once filesystem settings load, the SDK discovers skill metadata at startup from user and project directories, and loads the full content when Claude invokes the skill * **Model-invoked*…

Agent SDK reference - TypeScript Claude Code CLI · in the page agent-sdk/typescript …| ### `listSessions()` Discovers and lists past sessions with light metadata. Filter by project directory or list sessions across all projects. ```typescript theme={null} function listSessions(opti…

Configure auto mode Claude Code CLI · in the page auto-mode-config …eighbors it must not touch, name the allowed hosts, whether the cloud metadata endpoint should be reachable, and which cloud project, cluster, or registry the task uses and under what identity. Until…

Claude apps gateway configuration Claude Code CLI · in the page claude-apps-gateway-config …`https://` origin, used to build the IdP `redirect_uri` and discovery metadata. Required whenever `host` isn't a loopback address, whether TLS terminates at a proxy such as an ALB, Ingress, or Cloud R…

Claude apps gateway deployment and operations Claude Code CLI · in the page claude-apps-gateway-deploy …t forgery (SSRF) guard that resolves DNS, blocks link-local and cloud-metadata addresses plus loopback by default, and pins the connection to the resolved IP, so those operator-influenced URLs can't b…

Deploy Claude apps gateway on AWS Claude Code CLI · in the page claude-apps-gateway-on-aws …nd exchanges it with AWS STS, so the pod never needs the EC2 instance metadata service; an egress NetworkPolicy may block `169.254.169.254` for gateway pods. The node hop-limit problem in [Troubleshoo…

Deploy Claude apps gateway on Google Cloud Claude Code CLI · in the page claude-apps-gateway-on-gcp …c.id.goog" # On a Standard cluster, existing node pools also need GKE_METADATA; # Autopilot enables this by default. gcloud container node-pools update <pool> --cluster=<cluster> \ --region="$REGION…

Explore the .claude directory Claude Code CLI · in the page claude-directory …ffort`, `context`, `agent`, `background`, `hooks`, `paths`, `shell`, `metadata`, `license`, `compatibility` | [Skill frontmatter](/docs/en/skills#frontmatter-reference) | | `commands/*.md` | The skill…

claude-tag Claude Code CLI · in the page claude-tag …{ grid-template-columns: 1fr; } } /* Step pages: standardized metadata block */ .tm-stepmeta { border: 1px solid hsl(var(--border-300, 30 3.3% 11.8%) / 0.15); border-radius: 14px; backgr…

Explore the context window Claude Code CLI · in the page context-window …bagent's final text response comes back to your context, plus a small metadata trailer with token counts and duration. The subagent read 6,100 tokens of files. You got a 420-token result. That's the c…

Data usage Claude Code CLI · in the page data-usage …deployments, prompts and completions remain within Azure; only usage metadata and content flagged by Anthropic's safety systems egress to Anthropic. For Hosted on Anthropic deployments, requests rout…

Error reference Claude Code CLI · in the page errors …[`oauth.scopes`](/docs/en/mcp#restrict-oauth-scopes) nor [`authServerMetadataUrl`](/docs/en/mcp#override-oauth-metadata-discovery), Claude Code requests the scope the server named. With either settin…

Run Claude Code programmatically Claude Code CLI · in the page headless …in text output * `json`: structured JSON with result, session ID, and metadata * `stream-json`: newline-delimited JSON for real-time streaming This example returns a project summary as JSON with sess…

Hooks reference Claude Code CLI · in the page hooks …utput only as [`hook_response` events](/docs/en/headless#read-session-metadata) when you launch with `--output-format stream-json --verbose`. Setup hooks have access to `CLAUDE_ENV_FILE`. Variables w…

Connect Claude Code to tools via MCP Claude Code CLI · in the page mcp …d credentials. Claude Code also supports servers that use a Client ID Metadata Document (CIMD) instead of Dynamic Client Registration, and discovers these automatically. If automatic discovery fails,…

Enterprise network configuration Claude Code CLI · in the page network-config …rsion checks | | `storage.googleapis.com` | Plugin install counts and metadata shown in `/plugin` | | `storage.googleapis.com` | Native installer and native auto-updater on versions prior to 2.1.116 |…

Output styles Claude Code CLI · in the page output-styles …tput style A custom output style is a Markdown file: frontmatter for metadata, then the instructions for Claude. In the VS Code extension, you can also create the file from the [**Output styles** me…

Choose a permission mode Claude Code CLI · in the page permission-modes …whether directly or through a shell command. The rule also covers the metadata lines Claude Code appends to each transcript entry for its own checks. Reading a transcript isn't blocked * A recursive f…

Plugin commands reference Claude Code CLI · in the page plugins/cli-reference …trict` | Treat warnings as errors, so unrecognized fields and missing metadata that the runtime tolerates fail the run | | `--json` | Output the validation report as one JSON object with the same exit…

Add components to a plugin Claude Code CLI · in the page plugins/components …e in a plugin's `.claude-plugin/` directory. It contains the plugin's metadata and the `userConfig` values that Claude Code prompts the user for. Claude Code loads a plugin without one. Inside the fil…

Host and maintain a marketplace Claude Code CLI · in the page plugins/host-marketplace …st use `https://` and can't point at a loopback, link-local, or cloud-metadata host, so a redirect from `https://` to `http://` fails | | Zip from an `archive` plugin source | 256 MiB | 120 seconds |…

Plugin manifest reference Claude Code CLI · in the page plugins/manifest-reference …le in a plugin's `.claude-plugin/` directory. It carries the plugin's metadata and the [`userConfig`](#user-configuration) values that Claude Code prompts the user for. It also declares any component…

Plugins overview Claude Code CLI · in the page plugins/overview …the plugin its name and can add a version, a description, and other [metadata](/docs/en/plugins/manifest-reference.md). The components are what the plugin adds to Claude Code, such as: * [**Skills**…

Publish and distribute a plugin Claude Code CLI · in the page plugins/publish …en/plugins/loading.md#in-place-and-copied-plugins). **5. Fill in the metadata users see** Set `description`, `author`, `homepage`, and `repository` in `plugin.json`, and add a `README.md` at the plu…

Continue local sessions from any device with Remote Control Claude Code CLI · in the page remote-control …y other biometric information. Only the device's public key and basic metadata such as display name, platform, and enrollment time are stored. The setting applies to Remote Control in Claude Code and…

Configure the sandboxed Bash tool Claude Code CLI · in the page sandboxing …`127.0.0.1`, link-local addresses such as the `169.254.169.254` cloud metadata endpoint, and addresses assigned to your own machine. The names `localhost` and `*.localhost` are allowed to resolve to l…

Customize sessions in self-hosted environments Claude Code CLI · in the page self-hosted-environments-configuration …1. Check the method you choose against these runner behaviors: * **Metadata endpoint**: if you deny sessions the [cloud metadata endpoint](/docs/en/self-hosted-environments-deploy.md#harden-your-de…

Deploy self-hosted environments to production Claude Code CLI · in the page self-hosted-environments-deploy …wrapper script rather than inheriting the host's. * **Block the cloud metadata endpoint from sessions**: keeping sessions off the host identity requires blocking their access to the cloud metadata end…

Self-hosted environments reference Claude Code CLI · in the page self-hosted-environments-reference …(default 8080). apiVersion: monitoring.coreos.com/v1 kind: PodMonitor metadata: name: claude-code-self-hosted-runner namespace: monitoring spec: namespaceSelector: matchNames: - claude…

Manage sessions Claude Code CLI · in the page sessions …ystem limits. Each line is a JSON object for a message, tool use, or metadata entry. The entry format is internal to Claude Code and changes between versions, so scripts that parse these files direct…

Extend Claude with skills Claude Code CLI · in the page skills …nd on macOS, Linux, and WSL. Set it to `0` to turn the tool off. | | `metadata` | No | Free-form YAML map for your own key-value data, such as entitlement or catalog fields, read by your own tooling f…

Create custom subagents Claude Code CLI · in the page sub-agents …rity, and best practices. ``` The frontmatter defines the subagent's metadata and configuration. The body becomes the system prompt that guides the subagent's behavior. Subagents receive only this sy…

Tools reference Claude Code CLI · in the page tools-reference …Claude Code denies URLs that point at a private, link-local, or cloud-metadata address, including hostnames that resolve to one. It also denies hosts in `sandbox.network.deniedDomains`, and when [`all…

Week 36 · August 31 – September 4, 2026 Claude Code CLI · in the page whats-new/2026-w36 …fault) actions such as requesting credentials from the cloud instance-metadata endpoint or connecting to sibling containers that Claude didn't startIn auto mode, Claude Code asks you before Claude [fi…