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Author SHA1 Message Date
Claude
b5cc83f600 Improve /resume summaries after compaction
Add CHANGELOG entry for improved resume summaries that now display
what the user was actually working on instead of generic compaction
messages. This makes it easier to distinguish between sessions when
selecting from the resume list.
2025-12-15 04:41:35 +00:00
GitHub Actions
eb87245010 chore: Update CHANGELOG.md 2025-12-13 00:59:55 +00:00
GitHub Actions
3680637065 chore: Update CHANGELOG.md 2025-12-12 23:31:50 +00:00
GitHub Actions
2192c86c20 chore: Update CHANGELOG.md 2025-12-12 01:29:45 +00:00
kashyap murali
dfd3494132 Merge pull request #13739 from anthropics/claude/slack-session-01GzKi42xM3SphuxeQ4De88U
Remove footer from code-review plugin output
2025-12-11 14:42:30 -08:00
Claude
e8cca9a7af Remove footer from code-review plugin output
Remove the "Generated with Claude Code" footer and feedback CTA
from the code review comment template as it adds noise without
providing value after the first viewing.
2025-12-11 22:40:32 +00:00
GitHub Actions
6358669884 chore: Update CHANGELOG.md 2025-12-11 19:07:31 +00:00
GitHub Actions
ace0a82778 chore: Update CHANGELOG.md 2025-12-11 04:39:56 +00:00
GitHub Actions
e095e1270a chore: Update CHANGELOG.md 2025-12-10 08:18:47 +00:00
GitHub Actions
69da5e8269 chore: Update CHANGELOG.md 2025-12-10 02:27:37 +00:00
GitHub Actions
7069a25987 chore: Update CHANGELOG.md 2025-12-09 02:08:28 +00:00
3 changed files with 64 additions and 130 deletions

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# Bug Report: Duplicate tool_result blocks with same tool_use_id
## Summary
When a tool call fails (particularly observed with the Tmux tool), two `tool_result` blocks are incorrectly sent to the API with the same `tool_use_id`, causing an API error:
```
API Error: 400
{"type":"error","error":{"type":"invalid_request_error","message":"messages.X.content.1: each tool_use must have a single result. Found multiple `tool_result` blocks with id: toolu_XXX"}}
```
## Root Cause
The parallel tool execution error handling code sends a "Sibling tool call errored" message even for the tool that actually failed, when it should only send this message for OTHER sibling tools in the parallel batch.
## Reproduction
1. Execute a tool call that will fail (e.g., Tmux select-pane on a non-existent window)
2. Observe two tool_result messages being generated:
- First: The actual error result ("Window not found...")
- Second: A "<tool_use_error>Sibling tool call errored</tool_use_error>" message with the SAME tool_use_id
## Example JSON (from reported incident)
```json
// Assistant requests tool use
{
"type": "tool_use",
"id": "toolu_01K2K2KFvUrwA9PaHGp652zW",
"name": "Tmux",
"input": {"args": ["select-pane", "-t", "test-perms3:0.0"]}
}
// First tool_result (correct - actual error)
{
"type": "user",
"message": {
"role": "user",
"content": [{
"tool_use_id": "toolu_01K2K2KFvUrwA9PaHGp652zW",
"type": "tool_result",
"content": "Window not found. The specified window may not exist.",
"is_error": true
}]
}
}
// Second tool_result (BUG - same tool_use_id!)
{
"type": "user",
"message": {
"role": "user",
"content": [{
"type": "tool_result",
"content": "<tool_use_error>Sibling tool call errored</tool_use_error>",
"is_error": true,
"tool_use_id": "toolu_01K2K2KFvUrwA9PaHGp652zW"
}]
}
}
```
## Expected Behavior
- When a tool fails, only ONE tool_result should be sent for that tool_use_id
- The "Sibling tool call errored" message should ONLY be sent for OTHER tool_use_ids in a parallel batch, not for the tool that actually errored
## Suggested Fix Location
The fix should be in the code that handles parallel tool execution errors:
```typescript
// Pseudocode for the fix
function handleParallelToolResults(toolUseIds: string[], failedToolId: string, error: Error) {
const results = [];
for (const id of toolUseIds) {
if (id === failedToolId) {
// Send actual error for the failed tool
results.push({
tool_use_id: id,
type: "tool_result",
content: error.message,
is_error: true
});
} else {
// Only send sibling error for OTHER tools
results.push({
tool_use_id: id,
type: "tool_result",
content: "<tool_use_error>Sibling tool call errored</tool_use_error>",
is_error: true
});
}
}
return results;
}
```
Additionally, a deduplication check before sending to the API would prevent this:
```typescript
function deduplicateToolResults(messages: Message[]): Message[] {
const seenToolUseIds = new Set<string>();
return messages.filter(msg => {
if (msg.type === "tool_result") {
if (seenToolUseIds.has(msg.tool_use_id)) {
return false; // Skip duplicate
}
seenToolUseIds.add(msg.tool_use_id);
}
return true;
});
}
```
## Related CHANGELOG Fixes
Similar issues have been fixed before:
- v1.0.84: "Fix tool_use/tool_result id mismatch error when network is unstable"
- v2.0.0: "Hooks: Reduced PostToolUse 'tool_use' ids were found without 'tool_result' blocks errors"
- v2.0.22: "Fix bug causing duplicate permission prompts with parallel tool calls"
## Reported By
Issue reported via Slack with multiple reproductions showing the Tmux tool triggering this bug.
## Request IDs (for debugging)
- req_011CVt2KXhCGmrL2YN9sSZQP
- req_011CVtFYJLPxn9oB9FEkCnRr
- req_011CVtG1PREveTLikakXGEdn

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# Changelog
## 2.0.69
- Improved `/resume` summaries after compaction to show what was actually being worked on instead of generic compaction messages
- Minor bugfixes
## 2.0.68
- Fixed IME (Input Method Editor) support for languages like Chinese, Japanese, and Korean by correctly positioning the composition window at the cursor
- Fixed a bug where disallowed MCP tools were visible to the model
- Fixed an issue where steering messages could be lost while a subagent is working
- Fixed Option+Arrow word navigation treating entire CJK (Chinese, Japanese, Korean) text sequences as a single word instead of navigating by word boundaries
- Improved plan mode exit UX: show simplified yes/no dialog when exiting with empty or missing plan instead of throwing an error
- Add support for enterprise managed settings. Contact your Anthropic account team to enable this feature.
## 2.0.67
- Thinking mode is now enabled by default for Opus 4.5
- Thinking mode configuration has moved to /config
- Added search functionality to `/permissions` command with `/` keyboard shortcut for filtering rules by tool name
- Show reason why autoupdater is disabled in `/doctor`
- Fixed false "Another process is currently updating Claude" error when running `claude update` while another instance is already on the latest version
- Fixed MCP servers from `.mcp.json` being stuck in pending state when running in non-interactive mode (`-p` flag or piped input)
- Fixed scroll position resetting after deleting a permission rule in `/permissions`
- Fixed word deletion (opt+delete) and word navigation (opt+arrow) not working correctly with non-Latin text such as Cyrillic, Greek, Arabic, Hebrew, Thai, and Chinese
- Fixed `claude install --force` not bypassing stale lock files
- Fixed consecutive @~/ file references in CLAUDE.md being incorrectly parsed due to markdown strikethrough interference
- Windows: Fixed plugin MCP servers failing due to colons in log directory paths
## 2.0.65
- Added ability to switch models while writing a prompt using alt+p (linux, windows), option+p (macos).
- Added context window information to status line input
- Added `fileSuggestion` setting for custom `@` file search commands
- Added `CLAUDE_CODE_SHELL` environment variable to override automatic shell detection (useful when login shell differs from actual working shell)
- Fixed prompt not being saved to history when aborting a query with Escape
- Fixed Read tool image handling to identify format from bytes instead of file extension
## 2.0.64
- Made auto-compacting instant
- Agents and bash commands can run asynchronously and send messages to wake up the main agent
- /stats now provides users with interesting CC stats, such as favorite model, usage graph, usage streak
- Added named session support: use `/rename` to name sessions, `/resume <name>` in REPL or `claude --resume <name>` from the terminal to resume them
- Added support for .claude/rules/`. See https://code.claude.com/docs/en/memory for details.
- Added image dimension metadata when images are resized, enabling accurate coordinate mappings for large images
- Fixed auto-loading .env when using native installer
- Fixed `--system-prompt` being ignored when using `--continue` or `--resume` flags
- Improved `/resume` screen with grouped forked sessions and keyboard shortcuts for preview (P) and rename (R)
- VSCode: Added copy-to-clipboard button on code blocks and bash tool inputs
- VSCode: Fixed extension not working on Windows ARM64 by falling back to x64 binary via emulation
- Bedrock: Improve efficiency of token counting
- Bedrock: Add support for `aws login` AWS Management Console credentials
- Unshipped AgentOutputTool and BashOutputTool, in favor of a new unified TaskOutputTool
## 2.0.62
- Added "(Recommended)" indicator for multiple-choice questions, with the recommended option moved to the top of the list
- Added `attribution` setting to customize commit and PR bylines (deprecates `includeCoAuthoredBy`)
- Fixed duplicate slash commands appearing when ~/.claude is symlinked to a project directory
- Fixed slash command selection not working when multiple commands share the same name
- Fixed an issue where skill files inside symlinked skill directories could become circular symlinks
- Fixed running versions getting removed because lock file incorrectly going stale
- Fixed IDE diff tab not closing when rejecting file changes
## 2.0.61
- Reverted VSCode support for multiple terminal clients due to responsiveness issues.

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@@ -93,11 +93,6 @@ Found 3 issues:
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---
- Or, if you found no issues:
@@ -108,8 +103,6 @@ Found 3 issues:
No issues found. Checked for bugs and CLAUDE.md compliance.
🤖 Generated with [Claude Code](https://claude.ai/code)
---
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