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fix: consolidate command parsing logic and integrate security warnings
- Created shared command-parser.ts to eliminate duplicate parsing logic - Integrated detectSecurityIssues to display warnings in the UI - Made command suggestions configurable (only show when restrictions are enabled) - Added comprehensive tests for the new command parser - Updated existing tests to handle the new behavior
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## Architecture Review for PR #5798
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### Module Boundaries
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**✅ GOOD: Clear separation of concerns**
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- The command permission UI logic is properly separated into dedicated components:
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- `CommandExecution.tsx` - Handles command execution display and permission management
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- `CommandPatternSelector.tsx` - UI component for pattern selection
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- `commandPatterns.ts` - Business logic for pattern extraction and validation
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**✅ GOOD: Proper layering**
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- UI components (`CommandExecution`, `CommandPatternSelector`) depend on utility functions (`commandPatterns.ts`)
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- State management flows through proper channels (ExtensionStateContext → Components → VSCode messages)
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- No circular dependencies detected
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**⚠️ CONCERN: Overlapping responsibilities**
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- Both `command-validation.ts` and `commandPatterns.ts` handle command parsing
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- `command-validation.ts` uses shell-quote for validation logic
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- `commandPatterns.ts` also uses shell-quote for pattern extraction
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- This creates potential for divergent parsing behavior
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### Dependency Analysis
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**✅ GOOD: Appropriate dependency choice**
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- `shell-quote` (v1.8.2) is a well-established library for shell command parsing
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- Already used in `command-validation.ts`, so no new dependency introduced
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- Lightweight and focused on a single responsibility
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**⚠️ CONCERN: Dependency duplication**
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- Both runtime dependencies and devDependencies include shell-quote types
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- Consider if `@types/shell-quote` should only be in devDependencies
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### Architectural Concerns
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**❌ ISSUE: Inconsistent command parsing**
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- Two separate parsing implementations:
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1. `parseCommand()` in `command-validation.ts` - Complex parsing with subshell handling
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2. `parse()` usage in `commandPatterns.ts` - Simpler pattern extraction
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- Risk of commands being parsed differently for validation vs. pattern extraction
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**✅ GOOD: State synchronization**
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- Proper flow: UI → ExtensionState → VSCode messages → Backend persistence
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- Uses established patterns for state updates (`setAllowedCommands`, `setDeniedCommands`)
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- Backend properly validates and sanitizes command arrays
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**⚠️ CONCERN: Security considerations**
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- `commandPatterns.ts` removes subshells before pattern extraction (good)
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- However, the security warning detection (`detectSecurityIssues`) is not used in the UI
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- Pattern extraction might miss edge cases that the validation logic catches
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**✅ GOOD: Internationalization support**
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- All UI strings use i18n keys
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- 17 translation files updated consistently
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- Follows established i18n patterns
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### Impact on System Architecture
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**Integration with existing permission system:**
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- ✅ Properly integrates with existing `allowedCommands` and `deniedCommands` state
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- ✅ Uses the same validation logic (`getCommandDecision`) for auto-approval/denial
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- ✅ Maintains backward compatibility with existing permission settings
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**UI/UX consistency:**
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- ✅ Follows existing UI patterns (VSCode toolkit components, Tailwind styling)
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- ✅ Integrates seamlessly into the command execution flow
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- ✅ Provides immediate visual feedback for permission states
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**Performance considerations:**
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- ✅ Pattern extraction is memoized with `useMemo`
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- ✅ No unnecessary re-renders (proper React optimization)
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- ⚠️ Pattern extraction runs on every command - consider caching for repeated commands
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### Consistency with Architectural Patterns
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**✅ GOOD: Follows established patterns**
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- Component structure matches other chat components
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- State management through context follows app conventions
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- Message passing to extension follows established patterns
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**✅ GOOD: Test coverage**
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- Comprehensive unit tests for both components and utilities
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- Tests cover edge cases and user interactions
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- Follows existing test patterns
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### Recommendations
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1. **Consolidate command parsing logic**
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- Extract common parsing logic into a shared utility
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- Ensure `command-validation.ts` and `commandPatterns.ts` use the same parser
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- This prevents divergent behavior between validation and pattern extraction
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2. **Add pattern caching**
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- Cache extracted patterns for recently executed commands
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- Reduces redundant parsing operations
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3. **Enhance security integration**
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- Use `detectSecurityIssues` from `commandPatterns.ts` to show warnings in UI
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- Ensure pattern extraction doesn't bypass security checks
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4. **Consider extracting pattern management**
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- Create a dedicated service/manager for command patterns
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- Would centralize pattern extraction, caching, and persistence
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5. **Add integration tests**
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- Test the full flow: UI interaction → state update → backend persistence
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- Ensure pattern extraction and validation remain synchronized
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### Overall Assessment
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The PR demonstrates good architectural practices with clear module boundaries and proper separation of concerns. The main architectural concern is the duplication of command parsing logic, which could lead to inconsistent behavior. The integration with the existing permission system is well-designed and maintains backward compatibility. With the recommended improvements, particularly consolidating the parsing logic, this feature would be a solid addition to the codebase.

.roo/temp/pr-5798/comments.json

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"author": { "login": "delve-auditor" },
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"body": "✅ **No security or compliance issues detected.** Reviewed everything up to 47259df9547fe38e0b49d7fcb6e3eef84223212a.\n\n\n\u003cdetails\u003e\n\u003csummary\u003eSecurity Overview\u003c/summary\u003e\n\n- 🔎 **Scanned files:** 24 changed file(s)\n\n\n\u003c/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eDetected Code Changes\u003c/summary\u003e\n\nThe diff is too large to display a summary of code changes.\n\n\u003c/details\u003e\n\nReply to this PR with `@delve-auditor` followed by a description of what change you want and we'll auto-submit a change to this PR to implement it.",
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"body": "@roomote-agent Use the switch_mode tool to switch to pr-fixer and address the reviews on this PR, commit the changes to this PR, do not create a new one",
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"createdAt": "2025-07-21T16:38:47Z",
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"body": "Hi @daniel-lxs! I see your request to address the reviews on this PR. Ill now switch to pr-fixer mode and work on addressing the feedback from the code reviews. Ill commit the changes directly to this PR branch as requested.",
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"createdAt": "2025-07-21T17:03:24Z",
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"body": "Hi @daniel-lxs! I've successfully addressed all the code review feedback on this PR:\n\n✅ **Fixed Issues:**\n1. Replaced the unused `showSuggestions` state variable with a `SHOW_SUGGESTIONS` constant\n2. Fixed the `parseCommandAndOutput` import name consistency issue\n3. Added test coverage for the fallback case where `enhanced.command === text`\n\n✅ **All CI checks are passing** - The changes have been committed and pushed to the PR branch.\n\nThe PR is now ready for re-review. Thanks for your patience!",
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"body": "@roomote-agent please also address the review by Copilot by updating this PR, do not create a new PR",
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"body": "Hi @daniel-lxs! I see your request to address the Copilot review feedback. I'll work on fixing the following issues identified by Copilot:\n\n1. Convert the unused `showSuggestions` state variable to a constant\n2. Fix the `parseCommandAndOutput` import issue\n3. Add test coverage for the fallback case where `enhanced.command === text`\n\nI'll update this PR with the fixes shortly.",
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"body": "Hi @daniel-lxs! I've reviewed the Copilot feedback and found that all the issues have already been addressed in previous commits:\n\n✅ **Issue 1**: The `showSuggestions` state variable has been converted to a constant `SHOW_SUGGESTIONS` (fixed in commit 94efb1a12)\n✅ **Issue 2**: The `parseCommandAndOutput` function is properly imported from `commandPatterns.ts` and used correctly\n✅ **Issue 3**: Test coverage for the fallback case already exists in the test file (lines 467-489)\n\nAll CI checks are passing. The PR appears to be ready for review. The Copilot review seems to be based on an older version of the code before these fixes were applied.",
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"body": "I am seeing some odd behavior with certain commands:\r\n\u003cimg width=\"413\" height=\"244\" alt=\"image\" src=\"https://github.com/user-attachments/assets/e76efbd8-40a6-4d6a-86f4-7c2298db92b8\" /\u003e\r\n\u003cimg width=\"411\" height=\"204\" alt=\"image\" src=\"https://github.com/user-attachments/assets/8d422a2e-e547-499c-86eb-a04aac3feefd\" /\u003e\r\n\r\nNot sure what is going on but it seems like for the first image the \"341\" appeared when the result of the command was returned, replacing the correct command prefix.\r\n\r\nShould the command be parsed from the actual tool call rather than the terminal context?\r\n\r\n",
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"body": "## Critical Issues Found\r\n\r\nThis PR duplicates significant existing functionality and introduces architectural concerns that need to be addressed:\r\n\r\n### 1. Major Code Redundancy\r\n\r\n- **Pattern Extraction**: The new `extractCommandPatterns()` duplicates the existing `parseCommand()` function with inconsistent behavior\r\n",
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"body": "@roomote-agent the parser should be simplified to ```import { parse } from 'shell-quote';\r\n\r\nfunction extractPatterns(cmdStr) {\r\n const patterns = new Set();\r\n \r\n const parsed = parse(cmdStr);\r\n \r\n const commandSeparators = new Set(['|', '\u0026\u0026', '||', ';']);\r\n let current = [];\r\n for (const token of parsed) {\r\n if (typeof token === 'object' \u0026\u0026 token.op \u0026\u0026 commandSeparators.has(token.op)) {\r\n if (current.length) processCommand(current, patterns);\r\n current = [];\r\n } else {\r\n current.push(token);\r\n }\r\n }\r\n\r\n if (current.length) processCommand(current, patterns);\r\n \r\n return patterns;\r\n}``` and the filter should be simplified to ```function processCommand(cmd, patterns) {\r\n if (!cmd.length || typeof cmd[0] !== 'string') return;\r\n \r\n const mainCmd = cmd[0];\r\n patterns.add(mainCmd);\r\n \r\n const breakingExps = [ /^-/, /[\\\\/:.~ ]/, ];\r\n \r\n for (let i = 1; i \u003c cmd.length; i++) {\r\n const arg = cmd[i];\r\n\r\n if (typeof arg !== 'string' || breakingExps.some(re =\u003e re.test(arg))) break;\r\n \r\n const pattern = cmd.slice(0, i + 1).join(' ');\r\n patterns.add(pattern);\r\n }\r\n}```. That should be combined with the shell-quote library. ",
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"body": "Hi @hannesrudolph, I see your request to simplify the parser and filter functions using shell-quote. I'll implement these changes now. Working on it!",
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"body": "Hi @hannesrudolph, I've implemented the simplified parser as requested! \n\n## Changes made:\n- ✅ Replaced custom parsing logic with the `shell-quote` library\n- ✅ Implemented the simplified `extractPatterns` function exactly as specified\n- ✅ Implemented the simplified `processCommand` helper function exactly as specified\n- ✅ Removed dependency on `parseCommand` from command-validation\n- ✅ All 60 existing tests pass without modification\n\n## Key improvements:\n- The parser now properly handles complex shell syntax using the battle-tested `shell-quote` library\n- The code is more concise and easier to understand\n- The breaking expressions have been simplified to `[ /^-/, /[\\\\/:.~ ]/ ]` as requested\n\nThe changes have been pushed to the PR branch and CI checks are currently running. The implementation maintains full backward compatibility while simplifying the codebase significantly.",
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"body": "@roomote-agent run pr-reviewer mode on this and then fix the critical issues with pr-fixer mode",
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"body": "Hi @hannesrudolph, I see your request. I will now run pr-reviewer mode on this PR to identify critical issues, then switch to pr-fixer mode to address them. Starting the review process now...",
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