Source Intelligence
Sweep 28 Aug 2026 ยท 00:00Z Build v2.1.250 478 read Stable v2.1.236 Latest v2.1.250 Next v2.1.250 Feeds RSS JSON llms.txt

DisclaimerUnofficial, and not affiliated with Anthropic. Nearly all of this is read straight out of what ships: npm bundles, captured prompts, published docs. Anthropic's own notes go in verbatim, marked as theirs. The rest is my reading, and every entry carries the strings behind it. If one looks wrong, vote it down and say why.

Prompt capture

v2.1.6 system prompt

1 of 17 tool descriptions changed. Compared against v2.1.5.

Agent SDK, print mode 27 model strings 17 tools released captured Markdown

ExitPlanMode +35 −0 of 59 lines

This edit reached all 27 arms

from line 6
 - This tool simply signals that you're done planning and ready for the user to review and approve
 - The user will see the contents of your plan file when they review it
 
+## Requesting Permissions (allowedPrompts)
+When calling this tool, you can request prompt-based permissions for bash commands your plan will need. These are semantic descriptions of actions, not literal commands.
+
+**How to use:**
+```json
+{
+  "allowedPrompts": [
+    { "tool": "Bash", "prompt": "run tests" },
+    { "tool": "Bash", "prompt": "install dependencies" },
+    { "tool": "Bash", "prompt": "build the project" }
+  ]
+}
+```
+
+**Guidelines for prompts:**
+- Use semantic descriptions that capture the action's purpose, not specific commands
+- "run tests" matches: npm test, pytest, go test, bun test, etc.
+- "install dependencies" matches: npm install, pip install, cargo build, etc.
+- "build the project" matches: npm run build, make, cargo build, etc.
+- Keep descriptions concise but descriptive
+- Only request permissions you actually need for the plan
+- Scope permissions narrowly, like a security-conscious human would:
+  - **Never combine multiple actions into one permission** - split them into separate, specific permissions (e.g. "list pods in namespace X", "view logs in namespace X")
+  - Prefer "run read-only database queries" over "run database queries"
+  - Prefer "run tests in the project" over "run code"
+  - Add constraints like "read-only", "local", "non-destructive" whenever possible. If you only need read-only access, you must only request read-only access.
+  - Prefer not to request overly broad permissions that would grant dangerous access, especially any access to production data or to make irrecoverable changes
+  - When interacting with cloud environments, add constraints like "in the foobar project", "in the baz namespace", "in the foo DB table"
+  - Never request broad tool access like "run k8s commands" - always scope to specific actions and namespaces, ideally with constraints such as read-only
+
+**Benefits:**
+- Commands matching approved prompts won't require additional permission prompts
+- The user sees the requested permissions when approving the plan
+- Permissions are session-scoped and cleared when the session ends
+
 ## When to Use This Tool
 IMPORTANT: Only use this tool when the task requires planning the implementation steps of a task that requires writing code. For research tasks where you're gathering information, searching files, reading files or in general trying to understand the codebase - do NOT use this tool.
 

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