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Documentation changes
What the docs quietly changed.
Anthropic's published documentation, fetched on a schedule and diffed against the last copy. Every edit dated, including the ones that never made a release note.
Last poll read all 4 cleanly: Claude Code CLI, Claude Developer Platform, Claude Documentation, Model Context Protocol. A date here is when this site noticed, not when Anthropic edited.
Claude Developer Platform
820pages tracked
773 changed this week · last read 23 Oct 2026
Claude Code CLI
228pages tracked
147 changed this week · last read 23 Oct 2026
Claude Documentation
280pages tracked
81 changed this week · last read 23 Oct 2026
Model Context Protocol
357pages tracked
171 changed this week · last read 23 Oct 2026
14 on this page
10,114 of the ledger's changes in api. Show every change
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18 Aug 2026
13 pages
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api
manage-claude/wif-providers/aws
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manage-claude/wif-providers/aws
A successful exchange returns an `access_token` beginning with `sk-ant-oat01-` and an `expires_in` value in seconds. On `400 invalid_grant`, see [Troubleshoot a failed exchange](ht
A successful exchange returns an `access_token` beginning with `sk-ant-oat01-` and an `expires_in` value in seconds. If the exchange fails with the opaque `401` `authentication_err
A successful exchange returns an `access_token` beginning with `sk-ant-oat01-` and an `expires_in` value in seconds. On `400 invalid_grant`, see [Troubleshoot a failed exchange](ht
A successful exchange returns an `access_token` beginning with `sk-ant-oat01-` and an `expires_in` value in seconds. If the exchange fails with the opaque `401` `authentication_err
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Recorded here 18 Aug 2026 17:07 UTC
api
manage-claude/cmek
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manage-claude/cmek
### Encrypted
### Encrypted with CMEK key
* Personal preferences are disabled for users who belong to a CMEK-protected organization, across all organizations under the same parent. Users who do not belong to a CMEK-protect
### Not encrypted
### Encrypted with Anthropic key
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Recorded here 18 Aug 2026 17:07 UTC
api
build-with-claude/files
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build-with-claude/files
If you are building a multi-tenant application on the Files API, create a separate [workspace](https://platform.claude.com/docs/en/manage-claude/workspaces) for each tenant. The
* **Total storage:** 500 GB per organization
* **Total storage:** 1 TB per organization
### Audit logging
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Recorded here 18 Aug 2026 17:07 UTC
14 Aug 2026
11 pages
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api
managed-agents/skills
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managed-agents/skills
```text wrap
your-repo/
├── .claude/
│ └── skills/
│ ├── code-review/
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Recorded here 14 Aug 2026 19:03 UTC
api
manage-claude/inference-hooks-endpoint
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manage-claude/inference-hooks-endpoint
The smallest working integration is a server that reads each request and allows it. Run one of the following servers, expose it at a public `https://` URL (for example, behind a TL
The smallest working integration is a server that reads each request and allows it. Run one of the following servers, expose it at a public `https://` URL (for example, behind a TL
Host your AI security server where Anthropic can reach it: an `https://` URL on port 443, on a publicly routable host (private, loopback, and carrier-grade NAT ranges are refused a
Host your AI security server where Anthropic can reach it: an `https://` URL on port 443, on a publicly routable host (private, loopback, and carrier-grade NAT ranges are refused a
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api
manage-claude/inference-hooks-configuration
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manage-claude/inference-hooks-configuration
* An AI security server HTTPS endpoint that accepts verdict requests: an `https://` URL on port 443, on a publicly routable host, reachable without redirects. For the full [hosting
* An AI security server HTTPS endpoint that accepts verdict requests: an `https://` URL on port 443, on a publicly routable host, reachable without redirects. Reverse-tunnel hosts
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api
manage-claude/cmek
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manage-claude/cmek
* In Claude Managed Agents, [memory stores](https://platform.claude.com/docs/en/managed-agents/memory) and [dreams](https://platform.claude.com/docs/en/managed-agents/dreams) are d
| APIs | Tools and features |
| -------------------------------------------------------------- | --------------------------------------------------------------------------------------------------- |
| Messages | Web search |
| Models | Web fetch |
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Recorded here 14 Aug 2026 19:03 UTC
api
build-with-claude/prompt-engineering/prompting-claude-opus-5
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build-with-claude/prompt-engineering/prompting-claude-opus-5
If your harness is Claude Code or the Claude Agent SDK, the deterministic caps are the `CLAUDE_CODE_MAX_SUBAGENT_SPAWN_DEPTH` and `CLAUDE_CODE_MAX_CONCURRENT_SUBAGENTS` environment
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api
agents-and-tools/tool-use/code-execution-tool
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agents-and-tools/tool-use/code-execution-tool
When Claude creates files during code execution, each created file's ID appears in the code execution tool result, and you can download it with the [Files API](https://platform.cla
When Claude saves files to its output directory during code execution (see [How generated files are captured](https://platform.claude.com/docs/en/agents-and-tools/tool-use/code-exe
#### How generated files are captured
Each `bash_code_execution` call gets a new, empty directory, available to the command as `$OUTPUT_DIR`. When the command finishes, the files at the top level of that directory are
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api
agents-and-tools/tool-use/advisor-tool
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agents-and-tools/tool-use/advisor-tool
This pattern fits long-horizon agentic workloads (coding agents, computer use, multistep research pipelines) where most turns are mechanical but having an excellent plan is crucial
This pattern fits long-horizon agentic workloads (coding agents, computer use, multistep research pipelines) where most turns are mechanical but having an excellent plan is crucial
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api
agents-and-tools/agent-skills/overview
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agents-and-tools/agent-skills/overview
```text
pdf-processing/
├── SKILL.md (main instructions)
├── FORMS.md (form-filling guide)
├── REFERENCE.md (detailed API reference)
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api
agents-and-tools/agent-skills/best-practices
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agents-and-tools/agent-skills/best-practices
```text
pdf/
├── SKILL.md # Main instructions (loaded when triggered)
├── FORMS.md # Form-filling guide (loaded as needed)
├── reference.md # API reference (loaded as needed)
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Recorded here 14 Aug 2026 19:03 UTC
api
about-claude/models/optimizing-for-cost-and-intelligence
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about-claude/models/optimizing-for-cost-and-intelligence
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api
about-claude/models/choosing-a-model
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about-claude/models/choosing-a-model
## Combine models
Multi-model strategies pair a lower-cost model with a frontier model so that most tokens are billed at the lower rate. The two common patterns are an executor that escalates hard d
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