deeda Think — developer docs

What you can do with Anthropic through the harness, by feature family: the capability rows you can rely on (linked to vendor docs) and the parameters you can set for each. Configure parameters through the workflow surfaces described in the Workflow Schema — model/turn/budget fields on agent, provider knobs under harness_config.sdk_settings.anthropic, and tool/sandbox policy at top level.

How to read this page

Decision rules per capability state — what YOU (the reader/agent) should do:

State badge	Meaning	Your action
(none) = implemented	Wired end-to-end through deeda primitives and live-probed.	Use freely.
model-dependent	Works only on a documented subset of the provider’s models.	Pin a supporting `model` in your workflow; verify against the vendor docs link.
partial-compatible	One half of the contract is proven, the other is not (yet). Patterns: request shape accepted but execution unproven at scale; wired in deeda but live probe pending; vendor does it but no deeda knob exists; works on one dispatch path (e.g. CLI) but not another (e.g. raw API).	Usable — but treat the Parameters table as the entire contract. Do not assume vendor-parity beyond what is listed. If your task depends on the unproven half, test small first.

Parameter table columns: Parameter is the provider-side path the harness maps for you (you set it via workflow fields or harness_config.sdk_settings.<provider> knobs — see Runtimes for which knobs exist). Default applies when you say nothing. Allowed is exhaustive — values outside it fail validation. Risk is deeda’s policy weight: high parameters generally require elevated tool_policy/sandbox_profile and may trigger human approval on hot-reload.

Admin API

Capabilities (11/22 rows usable):

anthropic.admin.api_keys.get (provider.admin.read) — vendor docs
anthropic.admin.api_keys.list (provider.admin.read) — vendor docs
anthropic.admin.invites.get (provider.admin.read) — vendor docs
anthropic.admin.invites.list (provider.admin.read) — vendor docs
anthropic.admin.organizations.me (provider.admin.read) — vendor docs
anthropic.admin.organizations.members.get (provider.admin.read) — vendor docs
anthropic.admin.organizations.members.list (provider.admin.read) — vendor docs
anthropic.admin.workspace_members.get (provider.admin.read) — vendor docs
anthropic.admin.workspace_members.list (provider.admin.read) — vendor docs
anthropic.admin.workspaces.get (provider.admin.read) — vendor docs
anthropic.admin.workspaces.list (provider.admin.read) — vendor docs

Parameters (11):

Parameter	Type	Default	Allowed	Risk	Notes
`api_key_id`	string	—	—	medium	docs
`limit`	number	`20`	—	medium	docs
`invite_id`	string	—	—	medium	docs
`limit`	number	`20`	—	medium	docs
`read`	null	—	—	medium	Read-only; requires the org admin key (ANTHROPIC_ADMIN_KEY).
`user_id`	string	—	—	medium	docs
`limit`	number	`20`	—	medium	docs
`user_id`	string	—	—	medium	docs
`workspace_id`	string	—	—	medium	docs
`workspace_id`	string	—	—	medium	docs
`limit`	number	`20`	—	medium	docs

Batch/cost/cache

Concept guide: Cost, Batch & Cache — what this is, when to use it, and how to express it in workflow markdown.

Capabilities (2/2 rows usable):

anthropic.batches.create (batch.run) — vendor docs
anthropic.cache.ephemeral (llm.complete) — vendor docs

Parameters (3):

Parameter	Type	Default	Allowed	Risk	Notes
`requests`	array	—	—	medium	docs
`system[].cache_control.type`	enum	`"ephemeral"`	`"ephemeral"`	medium	docs
`model`	enum	`"claude-sonnet-4-5-20250929"`	`"claude-sonnet-4-5-20250929"`, `"claude-opus-4-1-20250805"`	low	docs

Beta features

Capabilities (2/7 rows usable):

anthropic.beta.computer_use (tool.computer) · partial-compatible — vendor docs
anthropic.beta.fast_mode (llm.routing) · partial-compatible — vendor docs

Beta headers

Capabilities (20/29 rows usable):

anthropic.betas.claude_code_20250219 (provider.beta_header) — vendor docs
anthropic.betas.code_execution_20250522 (provider.beta_header) — vendor docs
anthropic.betas.code_execution_20250825 (provider.beta_header) — vendor docs
anthropic.betas.computer_use_20241022 (provider.beta_header) — vendor docs
anthropic.betas.computer_use_20250124 (provider.beta_header) — vendor docs
anthropic.betas.context_1m_20250807 (provider.beta_header) — vendor docs
anthropic.betas.context_management_20250627 (provider.beta_header) — vendor docs
anthropic.betas.extended_cache_ttl_20250411 (provider.beta_header) — vendor docs
anthropic.betas.files_api_20250414 (provider.beta_header) — vendor docs
anthropic.betas.fine_grained_tool_streaming_20250514 (provider.beta_header) — vendor docs
anthropic.betas.interleaved_thinking_20250514 (provider.beta_header) — vendor docs
anthropic.betas.max_tokens_3_5_sonnet_20240715 (provider.beta_header) — vendor docs
anthropic.betas.mcp_client_20250404 (provider.beta_header) — vendor docs
anthropic.betas.output_128k_20250219 (provider.beta_header) — vendor docs
anthropic.betas.pdfs_20240925 (provider.beta_header) — vendor docs
anthropic.betas.prompt_caching_20240731 (provider.beta_header) — vendor docs
anthropic.betas.search_results_20250609 (provider.beta_header) — vendor docs
anthropic.betas.structured_outputs_20251113 (provider.beta_header) — vendor docs
anthropic.betas.token_efficient_tools_20250219 (provider.beta_header) — vendor docs
anthropic.betas.web_fetch_20250910 (provider.beta_header) — vendor docs

Parameters (20):

Parameter	Type	Default	Allowed	Risk	Notes
`header.anthropic-beta`	string	`"claude-code-2025-02-19"`	—	low	docs
`header.anthropic-beta`	string	`"code-execution-2025-05-22"`	—	low	docs
`header.anthropic-beta`	string	`"code-execution-2025-08-25"`	—	low	docs
`header.anthropic-beta`	string	`"computer-use-2024-10-22"`	—	low	docs
`header.anthropic-beta`	string	`"computer-use-2025-01-24"`	—	low	docs
`header.anthropic-beta`	string	`"context-1m-2025-08-07"`	—	medium	Medium risk: >200k-token inputs bill at the long-context rate.
`header.anthropic-beta`	string	`"context-management-2025-06-27"`	—	low	docs
`header.anthropic-beta`	string	`"extended-cache-ttl-2025-04-11"`	—	low	docs
`header.anthropic-beta`	string	`"files-api-2025-04-14"`	—	low	docs
`header.anthropic-beta`	string	`"fine-grained-tool-streaming-2025-05-14"`	—	low	docs
`header.anthropic-beta`	string	`"interleaved-thinking-2025-05-14"`	—	low	docs
`header.anthropic-beta`	string	`"max-tokens-3-5-sonnet-2024-07-15"`	—	low	docs
`header.anthropic-beta`	string	`"mcp-client-2025-04-04"`	—	low	docs
`header.anthropic-beta`	string	`"output-128k-2025-02-19"`	—	low	Header accepted live but inert on current models (3.7 line retired).
`header.anthropic-beta`	string	`"pdfs-2024-09-25"`	—	low	docs
`header.anthropic-beta`	string	`"prompt-caching-2024-07-31"`	—	low	docs
`header.anthropic-beta`	string	`"search-results-2025-06-09"`	—	low	docs
`header.anthropic-beta`	string	`"structured-outputs-2025-11-13"`	—	low	docs
`header.anthropic-beta`	string	`"token-efficient-tools-2025-02-19"`	—	low	Header accepted live but inert on current models (3.7 line retired).
`header.anthropic-beta`	string	`"web-fetch-2025-09-10"`	—	low	docs

Claude Agent SDK

Capabilities (23/23 rows usable):

anthropic.agent_sdk.callback.can_use_tool (agent.callback) · partial-compatible — vendor docs
anthropic.agent_sdk.callback.hook (agent.callback) · partial-compatible — vendor docs
anthropic.agent_sdk.hooks (agent.hook) · partial-compatible — vendor docs
anthropic.agent_sdk.mcp (tool.mcp) · partial-compatible — vendor docs
anthropic.agent_sdk.permission_mode.accept_edits (agent.permission_mode) · partial-compatible — vendor docs
anthropic.agent_sdk.permission_mode.bypass_permissions (agent.permission_mode) · partial-compatible — vendor docs
anthropic.agent_sdk.permission_mode.default (agent.permission_mode) · partial-compatible — vendor docs
anthropic.agent_sdk.permission_mode.plan (agent.permission_mode) · partial-compatible — vendor docs
anthropic.agent_sdk.permissions (agent.permission) · partial-compatible — vendor docs
anthropic.agent_sdk.plugins (agent.plugin) · partial-compatible — vendor docs
anthropic.agent_sdk.query (agent.query) · partial-compatible — vendor docs
anthropic.agent_sdk.sessions (agent.session) · partial-compatible — vendor docs
anthropic.agent_sdk.skills (agent.skills) · partial-compatible — vendor docs
anthropic.agent_sdk.slash_commands (agent.slash) · partial-compatible — vendor docs
anthropic.agent_sdk.subagents (agent.subagent) · partial-compatible — vendor docs
anthropic.agent_sdk.system_prompt (agent.prompt) · partial-compatible — vendor docs
anthropic.agent_sdk.system_prompt.preset (agent.prompt) · partial-compatible — vendor docs
anthropic.agent_sdk.tool_runner (agent.tool_runner) · partial-compatible — vendor docs
anthropic.agent_sdk.transport.http (tool.mcp_transport) · partial-compatible — vendor docs
anthropic.agent_sdk.transport.sdk_mcp (tool.mcp_transport) · partial-compatible — vendor docs
anthropic.agent_sdk.transport.sse (tool.mcp_transport) · partial-compatible — vendor docs
anthropic.agent_sdk.transport.stdio (tool.mcp_transport) · partial-compatible — vendor docs
anthropic.agent_sdk.user_input (tool.ask_user) · partial-compatible — vendor docs

Claude Code

Capabilities (7/22 rows usable):

anthropic.code.cli (agent.cli) · partial-compatible — vendor docs
anthropic.code.cli_reference (agent.cli) · partial-compatible — vendor docs
anthropic.code.hooks (agent.hook) · partial-compatible — vendor docs
anthropic.code.memory (agent.memory) · partial-compatible — vendor docs
anthropic.code.settings (agent.settings) · partial-compatible — vendor docs
anthropic.code.skills (agent.skills) · partial-compatible — vendor docs
anthropic.code.subagents (agent.subagent) · partial-compatible — vendor docs

Claude Code built-in tools

Concept guide: Tools & MCP — what this is, when to use it, and how to express it in workflow markdown.

Capabilities (15/15 rows usable):

anthropic.code.tools.bash (tool.bash) · partial-compatible — vendor docs
anthropic.code.tools.bash_output (tool.bash) · partial-compatible — vendor docs
anthropic.code.tools.edit (tool.fs_write) · partial-compatible — vendor docs
anthropic.code.tools.exit_plan_mode (agent.permission_mode) · partial-compatible — vendor docs
anthropic.code.tools.glob (tool.fs_search) · partial-compatible — vendor docs
anthropic.code.tools.grep (tool.fs_search) · partial-compatible — vendor docs
anthropic.code.tools.kill_shell (tool.bash) · partial-compatible — vendor docs
anthropic.code.tools.notebook_edit (tool.fs_write) · partial-compatible — vendor docs
anthropic.code.tools.read (tool.fs_read) · partial-compatible — vendor docs
anthropic.code.tools.skill (agent.skills) · partial-compatible — vendor docs
anthropic.code.tools.task (agent.subagent) · partial-compatible — vendor docs
anthropic.code.tools.todo_write (agent.todo) · partial-compatible — vendor docs
anthropic.code.tools.web_fetch (tool.web_fetch) · partial-compatible — vendor docs
anthropic.code.tools.web_search (tool.web_search) · partial-compatible — vendor docs
anthropic.code.tools.write (tool.fs_write) · partial-compatible — vendor docs

Commands discovery

Capabilities (2/3 rows usable):

anthropic.commands_discovery.plugin (agent.slash) · partial-compatible — vendor docs
anthropic.commands_discovery.project (agent.slash) · partial-compatible — vendor docs

Containers

Capabilities (1/1 rows usable):

anthropic.container.reuse (container.reuse) — vendor docs

Parameters (1):

Parameter	Type	Default	Allowed	Risk	Notes
`container`	string	—	—	medium	container id from a prior code-execution response; round-trip live-proven by pc-cat.anthropic.code-exec-container.

Content blocks

Capabilities (9/10 rows usable):

anthropic.content.document (file.read) — vendor docs
anthropic.content.image_base64 (media.image) — vendor docs
anthropic.content.redacted_thinking (llm.reasoning) · partial-compatible — vendor docs
anthropic.content.search_result (provider.tool.server) — vendor docs
anthropic.content.server_tool_use (provider.tool.server) — vendor docs
anthropic.content.text (llm.content) — vendor docs
anthropic.content.thinking (llm.reasoning) — vendor docs
anthropic.content.tool_result (tool.call) — vendor docs
anthropic.content.tool_use (tool.call) — vendor docs

Parameters (3):

Parameter	Type	Default	Allowed	Risk	Notes
`messages[].content[].source`	object	—	—	low	base64 PDF and plain-text document sources live-verified; citations.enabled toggles cited responses.
`messages[].content[].source`	object	—	—	low	{type:base64, media_type, data}; URL sources are vendor-rejected live (see anthropic.content.image_url).
`messages[].content[]`	object	—	—	low	search_result request blocks (source/title/content) under search-results-2025-06-09.

Context management

Concept guide: State & Sessions — what this is, when to use it, and how to express it in workflow markdown.

Capabilities (3/5 rows usable):

anthropic.context.management (llm.context) — vendor docs
anthropic.context.strategy.clear_thinking (llm.context.clear) — vendor docs
anthropic.context.strategy.clear_tool_uses (llm.context.clear) — vendor docs

Parameters (3):

Parameter	Type	Default	Allowed	Risk	Notes
`context_management.edits`	array	—	—	medium	Live edit types: clear_tool_uses_20250919, clear_thinking_20251015 (clear_thinking must be first and requires thinking enabled).
`context_management.edits[].type`	enum	`"clear_thinking_20251015"`	`"clear_thinking_20251015"`	medium	docs
`context_management.edits[].type`	enum	`"clear_tool_uses_20250919"`	`"clear_tool_uses_20250919"`	medium	docs

Core generation

Capabilities (2/2 rows usable):

anthropic.messages.create (llm.complete) — vendor docs
anthropic.messages.stream (llm.stream) — vendor docs

Parameters (5):

Parameter	Type	Default	Allowed	Risk	Notes
`max_tokens`	number	`1024`	—	medium	Required by Anthropic Messages contract; medium risk for cost.
`model`	string	`"claude-haiku-4-5-20251001"`	—	low	docs
`system`	string	—	—	low	docs
`temperature`	number	`1`	—	low	docs
`stream`	boolean	`true`	`true`	low	docs

Extended thinking

Concept guide: Thinking & Reasoning — what this is, when to use it, and how to express it in workflow markdown.

Capabilities (3/3 rows usable):

anthropic.thinking.adaptive (llm.reasoning) — vendor docs
anthropic.thinking.interleaved (llm.reasoning) — vendor docs
anthropic.thinking.summarized (llm.reasoning) · model-dependent — vendor docs

Parameters (2):

Parameter	Type	Default	Allowed	Risk	Notes
`thinking.type`	enum	`"adaptive"`	`"adaptive"`	medium	docs
`header.anthropic-beta`	string	`"interleaved-thinking-2025-05-14"`	—	medium	Interleaved thinking rides the beta header with thinking enabled + tools (live-pinned on sonnet-4-5).

Files API

Capabilities (3/4 rows usable):

anthropic.files.delete (file.delete) — vendor docs
anthropic.files.get (file.read) — vendor docs
anthropic.files.list (file.list) — vendor docs

Parameters (3):

Parameter	Type	Default	Allowed	Risk	Notes
`file_id`	string	—	—	medium	docs
`file_id`	string	—	—	low	docs
`limit`	number	`20`	—	low	docs

Hook decisions

Concept guide: Hooks — what this is, when to use it, and how to express it in workflow markdown.

Capabilities (6/6 rows usable):

anthropic.hooks.decision.additional_context (agent.hook.decision) · partial-compatible — vendor docs
anthropic.hooks.decision.allow_tool (agent.hook.decision) · partial-compatible — vendor docs
anthropic.hooks.decision.ask_user (agent.hook.decision) · partial-compatible — vendor docs
anthropic.hooks.decision.continue (agent.hook.decision) · partial-compatible — vendor docs
anthropic.hooks.decision.deny_tool (agent.hook.decision) · partial-compatible — vendor docs
anthropic.hooks.decision.suppress_output (agent.hook.decision) · partial-compatible — vendor docs

Hook events

Concept guide: Hooks — what this is, when to use it, and how to express it in workflow markdown.

Capabilities (12/12 rows usable):

anthropic.hooks.events.notification (agent.hook.event) · partial-compatible — vendor docs
anthropic.hooks.events.permission_request (agent.hook.event) · partial-compatible — vendor docs
anthropic.hooks.events.post_tool_use (agent.hook.event) · partial-compatible — vendor docs
anthropic.hooks.events.post_tool_use_failure (agent.hook.event) · partial-compatible — vendor docs
anthropic.hooks.events.pre_compact (agent.hook.event) · partial-compatible — vendor docs
anthropic.hooks.events.pre_tool_use (agent.hook.event) · partial-compatible — vendor docs
anthropic.hooks.events.session_end (agent.hook.event) · partial-compatible — vendor docs
anthropic.hooks.events.session_start (agent.hook.event) · partial-compatible — vendor docs
anthropic.hooks.events.stop (agent.hook.event) · partial-compatible — vendor docs
anthropic.hooks.events.subagent_start (agent.hook.event) · partial-compatible — vendor docs
anthropic.hooks.events.subagent_stop (agent.hook.event) · partial-compatible — vendor docs
anthropic.hooks.events.user_prompt_submit (agent.hook.event) · partial-compatible — vendor docs

Long context

Capabilities (1/1 rows usable):

anthropic.context.window_1m (llm.context) · partial-compatible — vendor docs

MCP

Concept guide: Tools & MCP — what this is, when to use it, and how to express it in workflow markdown.

Capabilities (17/22 rows usable):

anthropic.mcp.list_changed (tool.mcp) · partial-compatible — vendor docs
anthropic.mcp.oauth (tool.mcp) · partial-compatible — vendor docs
anthropic.mcp.plugin_servers (agent.plugin) · partial-compatible — vendor docs
anthropic.mcp.protocol.cancellation (tool.mcp) · partial-compatible — vendor docs
anthropic.mcp.protocol.completion (tool.mcp) · partial-compatible — vendor docs
anthropic.mcp.protocol.elicitation (tool.mcp) · partial-compatible — vendor docs
anthropic.mcp.protocol.logging (tool.mcp) · partial-compatible — vendor docs
anthropic.mcp.protocol.progress (tool.mcp) · partial-compatible — vendor docs
anthropic.mcp.protocol.prompts (tool.mcp) · partial-compatible — vendor docs
anthropic.mcp.protocol.resources (tool.mcp) · partial-compatible — vendor docs
anthropic.mcp.protocol.roots (tool.mcp) · partial-compatible — vendor docs
anthropic.mcp.protocol.sampling (tool.mcp) · partial-compatible — vendor docs
anthropic.mcp.scopes (tool.mcp) · partial-compatible — vendor docs
anthropic.mcp.tool_search (tool.mcp) · partial-compatible — vendor docs
anthropic.mcp.transport.http (tool.mcp_transport) · partial-compatible — vendor docs
anthropic.mcp.transport.sse (tool.mcp_transport) · partial-compatible — vendor docs
anthropic.mcp.transport.stdio (tool.mcp_transport) · partial-compatible — vendor docs

Memory hierarchy

Concept guide: State & Sessions — what this is, when to use it, and how to express it in workflow markdown.

Capabilities (1/2 rows usable):

anthropic.memory.project_claude_md (agent.memory) · partial-compatible — vendor docs

Message Batches

Concept guide: Cost, Batch & Cache — what this is, when to use it, and how to express it in workflow markdown.

Capabilities (5/5 rows usable):

anthropic.batches.cancel (batch.cancel) — vendor docs
anthropic.batches.delete (batch.delete) — vendor docs
anthropic.batches.get (batch.get) — vendor docs
anthropic.batches.list (batch.list) — vendor docs
anthropic.batches.results (batch.results) — vendor docs

Parameters (5):

Parameter	Type	Default	Allowed	Risk	Notes
`message_batch_id`	string	—	—	medium	docs
`message_batch_id`	string	—	—	medium	docs
`message_batch_id`	string	—	—	low	docs
`limit`	number	`20`	—	low	docs
`message_batch_id`	string	—	—	low	JSONL results stream; available only once processing_status=ended (live-pinned).

Messages API

Capabilities (4/4 rows usable):

anthropic.assistant.prefill (llm.complete) — vendor docs
anthropic.inference_geo (provider.geo) · partial-compatible — vendor docs
anthropic.output.config (llm.output) · model-dependent — vendor docs
anthropic.service_tier (provider.tier) · partial-compatible — vendor docs

Parameters (3):

Parameter	Type	Default	Allowed	Risk	Notes
`messages[-1].role`	string	—	—	low	Trailing role:assistant turn pins the output prefix; live-pinned by pc-cat.anthropic.prefill.
`inference_geo`	string	—	—	medium	Forwarded as CLI flag —inference-geo; dropped when the installed claude CLI lacks the flag.
`service_tier`	enum	—	`"auto"`, `"standard_only"`, `"flex"`, `"priority"`, `"batch"`	medium	Forwarded as CLI flag —service-tier; medium risk because priority tier changes billing. Dropped when the installed claude CLI lacks the flag.

Partner platforms

Capabilities (3/4 rows usable):

anthropic.partners.bedrock (provider.bedrock) · partial-compatible — vendor docs
anthropic.partners.foundry (provider.azure) · partial-compatible — vendor docs
anthropic.partners.vertex (provider.vertex) · partial-compatible — vendor docs

Platform data

Capabilities (2/2 rows usable):

anthropic.beta (provider.beta_gateway) — vendor docs
anthropic.models.list (provider.models_list) — vendor docs

Parameters (2):

Parameter	Type	Default	Allowed	Risk	Notes
`header.anthropic-beta`	array	—	—	medium	Comma-joined anthropic-beta values; the accepted set is live-pinged by pc-cat.anthropic.betas-transport.
`posture`	null	—	—	low	Discovery endpoint — invoked by Thinker, not surfaced as a user knob.

Plugin discovery

Capabilities (1/2 rows usable):

anthropic.plugins_discovery.project (agent.plugin) · partial-compatible — vendor docs

Prompt caching

Concept guide: Cost, Batch & Cache — what this is, when to use it, and how to express it in workflow markdown.

Capabilities (2/3 rows usable):

anthropic.cache.extended_ttl (llm.cache.ttl) — vendor docs
anthropic.cache.workspace_isolation (llm.cache.scope) · partial-compatible — vendor docs

Parameters (1):

Parameter	Type	Default	Allowed	Risk	Notes
`system[].cache_control.ttl`	enum	`"5m"`	`"5m"`, `"1h"`	medium	PC-CAT wave-3 flip: 1h TTL honored live (usage.cache_creation.ephemeral_1h_input_tokens fired, probe pc-cat.anthropic.cache-ttl-extended).

Rate limits API

Capabilities (1/1 rows usable):

anthropic.rate_limits.get (provider.rate_limit) · partial-compatible — vendor docs

Reasoning/thinking

Concept guide: Thinking & Reasoning — what this is, when to use it, and how to express it in workflow markdown.

Capabilities (1/1 rows usable):

anthropic.thinking.extended (llm.complete) — vendor docs

Parameters (1):

Parameter	Type	Default	Allowed	Risk	Notes
`thinking.budget_tokens`	number	`1024`	—	medium	docs

Retrieval/files/embeddings

Capabilities (3/3 rows usable):

anthropic.citations (llm.complete) — vendor docs
anthropic.files.pdf (file.read) — vendor docs
anthropic.files.upload (file.upload) — vendor docs

Parameters (3):

Parameter	Type	Default	Allowed	Risk	Notes
`messages[].content[].citations.enabled`	boolean	`false`	—	low	Cited responses live-proven on a text-source document (probe pc-cat.anthropic.docs-citations).
`messages[].content[].source.media_type`	enum	`"application/pdf"`	`"application/pdf"`	low	docs
`file`	string	—	—	medium	Multipart file part on POST /v1/files under files-api-2025-04-14.

Sampling parameters

Capabilities (4/6 rows usable):

anthropic.sampling.metadata_user_id (llm.sampling) · partial-compatible — vendor docs
anthropic.sampling.stop_sequences (llm.sampling) · partial-compatible — vendor docs
anthropic.sampling.top_k (llm.sampling) · partial-compatible — vendor docs
anthropic.sampling.top_p (llm.sampling) · partial-compatible — vendor docs

Parameters (4):

Parameter	Type	Default	Allowed	Risk	Notes
`metadata.user_id`	string	—	—	low	Forwarded as CLI flag —metadata-user-id; dropped when the installed claude CLI lacks the flag.
`stop_sequences`	array	—	—	low	Forwarded as CLI flag —stop-sequences (JSON); dropped when the installed claude CLI lacks the flag.
`top_k`	number	—	—	low	Forwarded as CLI flag —top-k; dropped (reported unsupported) when the installed claude CLI lacks the flag.
`top_p`	number	—	—	low	Forwarded as CLI flag —top-p; dropped (reported unsupported) when the installed claude CLI lacks the flag.

SDK/agent harness

Capabilities (1/2 rows usable):

anthropic.agent_sdk (anthropic.agent.run) · partial-compatible — vendor docs

Server tools

Concept guide: Tools & MCP — what this is, when to use it, and how to express it in workflow markdown.

Capabilities (5/5 rows usable):

anthropic.tools.bash (tool.bash) · partial-compatible — vendor docs
anthropic.tools.code_execution (tool.code_execution) — vendor docs
anthropic.tools.memory (tool.memory) · partial-compatible — vendor docs
anthropic.tools.text_editor (tool.text_editor) · partial-compatible — vendor docs
anthropic.tools.web_fetch (tool.web_fetch) — vendor docs

Parameters (2):

Parameter	Type	Default	Allowed	Risk	Notes
`tools[].type`	enum	`"code_execution_20250825"`	`"code_execution_20250522"`, `"code_execution_20250825"`	high	High risk: vendor-side python execution; live-proven with container round-trip.
`tools[].type`	enum	`"web_fetch_20250910"`	`"web_fetch_20250910"`	medium	Vendor-side URL fetching with citations; live-proven under web-fetch-2025-09-10.

Settings hierarchy

Capabilities (2/3 rows usable):

anthropic.settings.local (agent.settings) · partial-compatible — vendor docs
anthropic.settings.project (agent.settings) · partial-compatible — vendor docs

Skills discovery

Capabilities (2/3 rows usable):

anthropic.skills_discovery.plugin (agent.skills) · partial-compatible — vendor docs
anthropic.skills_discovery.project (agent.skills) · partial-compatible — vendor docs

Stop reasons

Capabilities (6/6 rows usable):

anthropic.stop_reason.end_turn (llm.stop_reason) — vendor docs
anthropic.stop_reason.max_tokens (llm.stop_reason) — vendor docs
anthropic.stop_reason.pause_turn (llm.stop_reason) · partial-compatible — vendor docs
anthropic.stop_reason.refusal (llm.stop_reason) · partial-compatible — vendor docs
anthropic.stop_reason.stop_sequence (llm.stop_reason) — vendor docs
anthropic.stop_reason.tool_use (llm.stop_reason) — vendor docs

Streaming events

Capabilities (12/12 rows usable):

anthropic.streaming.delta.citations (llm.stream.delta) — vendor docs
anthropic.streaming.delta.input_json (llm.stream.delta) — vendor docs
anthropic.streaming.delta.thinking (llm.stream.delta) — vendor docs
anthropic.streaming.event.content_block_delta (llm.stream.event) — vendor docs
anthropic.streaming.event.content_block_start (llm.stream.event) — vendor docs
anthropic.streaming.event.content_block_stop (llm.stream.event) — vendor docs
anthropic.streaming.event.error (llm.stream.event) · partial-compatible — vendor docs
anthropic.streaming.event.message_delta (llm.stream.event) — vendor docs
anthropic.streaming.event.message_start (llm.stream.event) — vendor docs
anthropic.streaming.event.message_stop (llm.stream.event) — vendor docs
anthropic.streaming.event.ping (llm.stream.event) · partial-compatible — vendor docs
anthropic.streaming.fine_grained_tool (llm.stream.delta) — vendor docs

Parameters (1):

Parameter	Type	Default	Allowed	Risk	Notes
`header.anthropic-beta`	string	`"fine-grained-tool-streaming-2025-05-14"`	—	low	docs

Structured outputs

Concept guide: Structured Output — what this is, when to use it, and how to express it in workflow markdown.

Capabilities (2/2 rows usable):

anthropic.output.json_mode (llm.structured) — vendor docs
anthropic.output.structured (llm.structured) — vendor docs

Parameters (2):

Parameter	Type	Default	Allowed	Risk	Notes
`output_format.type`	enum	`"json_schema"`	`"json_schema"`	medium	json_schema is the live-pinned strict mode (probe parses the response as schema-valid JSON).
`output_format`	object	—	—	medium	{type:json_schema, schema} under structured-outputs-2025-11-13; live-verified to return schema-valid JSON.

System prompt

Capabilities (2/2 rows usable):

anthropic.system_prompt.blocks (llm.system) — vendor docs
anthropic.system_prompt.string (llm.system) — vendor docs

Parameters (2):

Parameter	Type	Default	Allowed	Risk	Notes
`system[]`	array	—	—	low	Block-array system channel with cache breakpoints; buildAnthropicSdkSystemPrompt emits string[] parts split at SYSTEM_PROMPT_DYNAMIC_BOUNDARY.
`system`	string	—	—	low	Simple-form system channel; compiled by the harness, not a direct user knob.

Token counting

Capabilities (1/1 rows usable):

anthropic.messages.count_tokens (llm.tokens.count) — vendor docs

Parameters (1):

Parameter	Type	Default	Allowed	Risk	Notes
`model`	string	`"claude-haiku-4-5-20251001"`	—	low	docs

Tool versions

Concept guide: Tools & MCP — what this is, when to use it, and how to express it in workflow markdown.

Capabilities (7/13 rows usable):

anthropic.tools.versions.bash_20250124 (tool.bash) — vendor docs
anthropic.tools.versions.code_execution_20250522 (tool.code_execution) — vendor docs
anthropic.tools.versions.code_execution_20250825 (tool.code_execution) — vendor docs
anthropic.tools.versions.computer_20250124 (tool.computer) — vendor docs
anthropic.tools.versions.computer_20251124 (tool.computer) · partial-compatible — vendor docs
anthropic.tools.versions.web_fetch_20250910 (tool.web_fetch) — vendor docs
anthropic.tools.versions.web_search_20250305 (tool.web_search) — vendor docs

Parameters (6):

Parameter	Type	Default	Allowed	Risk	Notes
`tools[].type`	enum	`"bash_20250124"`	`"bash_20250124"`	high	docs
`tools[].type`	enum	`"code_execution_20250522"`	`"code_execution_20250522"`	high	docs
`tools[].type`	enum	`"code_execution_20250825"`	`"code_execution_20250825"`	high	docs
`tools[].type`	enum	`"computer_20250124"`	`"computer_20250124"`	high	docs
`tools[].type`	enum	`"web_fetch_20250910"`	`"web_fetch_20250910"`	medium	docs
`tools[].type`	enum	`"web_search_20250305"`	`"web_search_20250305"`	medium	docs

Tools

Concept guide: Tools & MCP — what this is, when to use it, and how to express it in workflow markdown.

Capabilities (4/6 rows usable):

anthropic.tools.client (tool.call) — vendor docs
anthropic.tools.mcp_connector (provider.tool.server) · partial-compatible — vendor docs
anthropic.tools.server (provider.tool.server) — vendor docs
anthropic.tools.web_search (provider.tool.server) — vendor docs

Parameters (4):

Parameter	Type	Default	Allowed	Risk	Notes
`tool_choice.type`	enum	`"auto"`	`"auto"`, `"any"`, `"tool"`, `"none"`	medium	PC-CAT wave-3 flip: full client-tool roundtrip live-proven (probe pc-cat.anthropic.content-blocks, incl. forced tool_choice).
`tools[].display_width_px`	number	`1024`	—	high	docs
`tools[].type`	string	—	—	medium	Server tools execute vendor-side; live-proven via web_search.
`tools[].max_uses`	number	`1`	—	medium	Caps vendor-side search count per request; live-proven (probe uses max_uses:1).

Usage accounting

Capabilities (4/4 rows usable):

anthropic.usage.cache_creation_1h (provider.usage) — vendor docs
anthropic.usage.cache_creation_5m (provider.usage) — vendor docs
anthropic.usage.cache_read (provider.usage) — vendor docs
anthropic.usage.server_tool_use (provider.usage) — vendor docs

​How to read this page

​Admin API

​Batch/cost/cache

​Beta features

​Beta headers

​Claude Agent SDK

​Claude Code

​Claude Code built-in tools

​Commands discovery

​Containers

​Content blocks

​Context management

​Core generation

​Extended thinking

​Files API

​Hook decisions

​Hook events

​Long context

​MCP

​Memory hierarchy

​Message Batches

​Messages API

​Partner platforms

​Platform data

​Plugin discovery

​Prompt caching

​Rate limits API

​Reasoning/thinking

​Retrieval/files/embeddings

​Sampling parameters

​SDK/agent harness

​Server tools

​Settings hierarchy

​Skills discovery

​Stop reasons

​Streaming events

​Structured outputs

​System prompt

​Token counting

​Tool versions

​Tools

​Usage accounting

How to read this page

Admin API

Batch/cost/cache

Beta features

Beta headers

Claude Agent SDK

Claude Code

Claude Code built-in tools

Commands discovery

Containers

Content blocks

Context management

Core generation

Extended thinking

Files API

Hook decisions

Hook events

Long context

MCP

Memory hierarchy

Message Batches

Messages API

Partner platforms

Platform data

Plugin discovery

Prompt caching

Rate limits API

Reasoning/thinking

Retrieval/files/embeddings

Sampling parameters

SDK/agent harness

Server tools

Settings hierarchy

Skills discovery

Stop reasons

Streaming events

Structured outputs

System prompt

Token counting

Tool versions

Tools

Usage accounting