---
phase: 25-file-system
verified: 2026-04-01T00:00:00Z
status: human_needed
score: 15/15 must-haves verified
re_verification: true
previous_status: gaps_found
previous_score: 13/15
gaps_closed:
  - "Every file upload creates a git commit in the storage directory (FILE-09) — git-file-service.ts now exists and commitFile is called in the upload handler"
  - "User can view the git log (version history) for any file (FILE-10) — GET /files/:fileId/history route now present in chat-files.ts"
gaps_remaining: []
regressions: []
human_verification:
  - test: "Drag a file onto the chat input area"
    expected: "Drop zone overlay appears with dashed border and 'Drop files here' text; on release, file uploads with progress chip visible"
    why_human: "Drag-and-drop visual feedback and upload progress require a running browser"
  - test: "Paste an image from clipboard into the chat textarea"
    expected: "Image upload begins immediately, progress chip appears above textarea"
    why_human: "Clipboard paste interaction requires a running browser"
  - test: "Click the Paperclip button in ChatInput, select a file"
    expected: "Native file picker opens; selecting a file starts the upload and shows a pending chip"
    why_human: "Native file picker requires a running browser"
  - test: "View a message with an attached code file (.ts, .py, etc.)"
    expected: "ChatCodeFilePreview renders with syntax highlighting, copy button, language label, and a download card below"
    why_human: "highlight.js rendering and layout require a running browser"
  - test: "Click the microphone button, speak, then click the stop button"
    expected: "Loader2 spinner while transcribing; transcription text inserted into textarea"
    why_human: "MediaRecorder API, microphone permission, and UI state transitions require a running browser"
  - test: "In a project-linked conversation, click the FolderUp button on a ChatFileCard"
    expected: "File is promoted to project scope; FolderUp button disappears"
    why_human: "Requires running app with real project context and DB writes"
  - test: "Upload any file in a conversation and inspect the storage directory with 'git log'"
    expected: "A new commit with message 'Upload: <filename>' appears in the git log for the storage directory"
    why_human: "Requires a running server and real file system git operations to verify end-to-end"
  - test: "Call GET /api/files/:fileId/history for an uploaded file"
    expected: "JSON response with 'items' array containing objects with hash, date, message, author fields"
    why_human: "Requires a running server with a file that has been committed to git storage"
---

# Phase 25: File System Verification Report (Final Re-verification)

**Phase Goal:** Users and agents can upload, generate, preview, and download files in chat, with all files tracked in libSQL, version-controlled by git, and accessible across devices
**Verified:** 2026-04-01T00:00:00Z
**Status:** human_needed (all automated checks pass)
**Re-verification:** Yes — after merging worktree code for FILE-09/FILE-10

## Re-verification Summary

This is the third verification pass for Phase 25. The previous verification (score 13/15) identified two gaps:

1. `server/src/services/git-file-service.ts` did not exist on the deliverable branch (was in a separate worktree).
2. `GET /files/:fileId/history` route was absent in `server/src/routes/chat-files.ts`.

Both gaps have been resolved. The merged code has been verified to be substantive and correctly wired.

**No regressions detected** — all 13 previously-verified truths remain intact.

---

## Goal Achievement

### Observable Truths

| #  | Truth                                                                              | Status     | Evidence                                                                                      |
|----|------------------------------------------------------------------------------------|------------|-----------------------------------------------------------------------------------------------|
| 1  | Users can upload files via drag-and-drop, button, or clipboard paste               | VERIFIED   | ChatFileDropZone, useChatFileUpload hook, ChatInput integration all present                   |
| 2  | Uploaded files are persisted to disk and tracked in libSQL                         | VERIFIED   | StorageService.putFile + chatFileService.create in POST /conversations/:id/files              |
| 3  | File metadata tracked with dual scope (project + conversation)                     | VERIFIED   | chat_files schema has projectId FK + conversationId; deriveCategory in service                |
| 4  | File references table enables multi-conversation reuse without duplication         | VERIFIED   | chat_file_references schema + createReference method wired in routes                          |
| 5  | Images render inline in chat messages                                              | VERIFIED   | ChatFilePreview branches on category === "image" and renders `<img>` inline                   |
| 6  | Code files show syntax-highlighted preview in chat                                 | VERIFIED   | ChatCodeFilePreview (176 lines): fetch content, hljs.highlight, paperclip-markdown class      |
| 7  | One-click file download from chat                                                  | VERIFIED   | ChatFileCard download anchor present; REQUIREMENTS.md marked Complete                         |
| 8  | Agent-generated files tracked in PLACEHOLDERS.md manifest                          | VERIFIED   | placeholderService (161 lines) + phSvc.addEntry called for agent_generated uploads            |
| 9  | Every file upload creates a git commit in the storage directory                    | VERIFIED   | gitSvc.commitFile called at line 106 of chat-files.ts; git-file-service.ts (101 lines) substantive |
| 10 | User can view version history (git log) for any file                               | VERIFIED   | GET /files/:fileId/history route at lines 136-151 of chat-files.ts; gitSvc.getLog wired       |
| 11 | File scope promotion: chat-scoped file promotable to project scope                 | VERIFIED   | PATCH /files/:fileId/promote + ChatFileCard FolderUp button + chatApi.promoteFile             |
| 12 | Cross-device file access via HTTP API                                              | VERIFIED   | GET /files/:fileId/content streams over HTTP; REQUIREMENTS.md marked Complete                 |
| 13 | User can record voice audio and receive transcription in chat input                | VERIFIED   | VoiceRecordButton (109 lines) + POST /transcribe + ChatInput enableVoiceInput wired           |
| 14 | INPUT-02/INPUT-03 file drag-and-drop and clipboard paste                           | VERIFIED   | ChatFileDropZone + handlePaste in ChatInput wired                                             |
| 15 | TypeScript compiles without errors in phase-25 files                               | VERIFIED   | tsc --noEmit: zero errors in git-file-service.ts, chat-files.ts, or any other phase-25 file (pre-existing plugin-sdk errors are unrelated) |

**Score:** 15/15 truths verified

---

### Required Artifacts

| Artifact                                             | Status      | Details                                                                                    |
|------------------------------------------------------|-------------|--------------------------------------------------------------------------------------------|
| `packages/db/src/schema/chat_files.ts`               | VERIFIED    | Dual-scope schema with projectId FK, conversationId, source, category columns             |
| `packages/db/src/schema/chat_file_references.ts`     | VERIFIED    | Cross-reference table schema present                                                       |
| `packages/shared/src/types/chat.ts`                  | VERIFIED    | ChatFile, ChatFileReference, ChatPlaceholderEntry, ChatFileHistoryEntry all present        |
| `server/src/services/chat-files.ts`                  | VERIFIED    | create, getById, listByConversation, attachToMessage, promoteToProject, markAsPlaceholder  |
| `server/src/routes/chat-files.ts`                    | VERIFIED    | Upload, download, references, promote, replace, transcribe, and history routes all present |
| `server/src/services/git-file-service.ts`            | VERIFIED    | 101 lines; ensureRepo, commitFile, getLog; uses execFile("git", ...) with real git calls   |
| `server/src/services/placeholder-service.ts`         | VERIFIED    | 161 lines; addEntry, replaceEntry, listEntries; PLACEHOLDERS.md markdown table management  |
| `ui/src/components/ChatFileDropZone.tsx`             | VERIFIED    | Drop zone overlay component present                                                        |
| `ui/src/components/ChatFilePreview.tsx`              | VERIFIED    | Branches: image inline, code to ChatCodeFilePreview, fallback ChatFileCard                 |
| `ui/src/components/ChatCodeFilePreview.tsx`          | VERIFIED    | 176 lines; hljs.highlight, fetch(contentPath), extToLang, max-h-[400px], ChatFileCard     |
| `ui/src/components/ChatFileCard.tsx`                 | VERIFIED    | 94 lines; download anchor, FolderUp promote button, chatApi.promoteFile call               |
| `ui/src/components/VoiceRecordButton.tsx`            | VERIFIED    | 109 lines; MediaRecorder, fetch /api/transcribe, recording/transcribing/idle states        |
| `ui/src/api/chat.ts`                                 | VERIFIED    | uploadFile, attachFilesToMessage, promoteFile methods present                              |

---

### Key Link Verification

| From                          | To                                        | Via                               | Status    | Details                                                               |
|-------------------------------|-------------------------------------------|-----------------------------------|-----------|-----------------------------------------------------------------------|
| ChatFilePreview.tsx           | ChatCodeFilePreview.tsx                   | import + code category branch     | WIRED     | `import { ChatCodeFilePreview }` + `file.category === "code"` branch  |
| ChatCodeFilePreview.tsx       | /api/files/:fileId/content                | fetch(contentPath)                | WIRED     | `fetch(contentPath, { credentials: "include" })` at line 87           |
| ChatFileCard.tsx              | chatApi.promoteFile                       | promoteFile call in promote button | WIRED    | `chatApi.promoteFile(file.id, projectId)` at line 65                  |
| server/routes/chat-files.ts   | placeholder-service.ts                    | phSvc.addEntry                    | WIRED     | `phSvc.addEntry(projectDir, {...})` at lines 111-115                  |
| server/routes/chat-files.ts   | chat-files.ts service                     | fileSvc.promoteToProject          | WIRED     | `fileSvc.promoteToProject(fileId, projectId)` at line 214             |
| server/routes/chat-files.ts   | git-file-service.ts                       | gitSvc.commitFile                 | WIRED     | `gitSvc.commitFile(storageDir, stored.objectKey, ...)` at line 106    |
| server/routes/chat-files.ts   | git-file-service.ts                       | gitSvc.getLog in /history route   | WIRED     | `gitSvc.getLog(storageDir, chatFile.objectKey, limit)` at line 149    |
| ChatInput.tsx                 | VoiceRecordButton.tsx                     | import + enableVoiceInput prop    | WIRED     | `import { VoiceRecordButton }` + `{enableVoiceInput && <VoiceRecordButton ...>}` |
| VoiceRecordButton.tsx         | /api/transcribe                           | fetch POST with audio FormData    | WIRED     | `fetch("/api/transcribe", { method: "POST", body: formData })`        |
| ChatPanel.tsx                 | ChatInput enableVoiceInput                | prop pass-through                 | WIRED     | `enableVoiceInput={true}` at line 391                                 |

---

### Data-Flow Trace (Level 4)

| Artifact                     | Data Variable    | Source                            | Produces Real Data | Status    |
|------------------------------|------------------|-----------------------------------|--------------------|-----------|
| ChatCodeFilePreview.tsx      | content (string) | fetch(contentPath) → .text()      | Yes                | FLOWING   |
| ChatFileCard.tsx             | file.projectId   | prop from parent component        | Yes                | FLOWING   |
| VoiceRecordButton.tsx        | transcription    | POST /transcribe → res.json()     | Yes (or 503)       | FLOWING   |
| GET /files/:fileId/history   | entries array    | gitSvc.getLog → git log stdout    | Yes                | FLOWING   |

---

### Behavioral Spot-Checks

| Behavior                                           | Command / Check                                                          | Result                                              | Status |
|----------------------------------------------------|--------------------------------------------------------------------------|-----------------------------------------------------|--------|
| git-file-service.ts exists on current branch       | `ls server/src/services/git-file-service.ts`                             | File present, 101 lines                             | PASS   |
| git-file-service.ts uses real git calls            | grep "execFile" git-file-service.ts                                      | `execFile("git", args, ...)` at line 23             | PASS   |
| gitSvc import in chat-files routes                 | grep "git-file-service" server/src/routes/chat-files.ts                  | `import { gitFileService }` at line 12              | PASS   |
| gitSvc.commitFile called on upload                 | grep "commitFile" server/src/routes/chat-files.ts                        | `gitSvc.commitFile(...)` at line 106                | PASS   |
| GET /files/:fileId/history route exists            | grep "/history" server/src/routes/chat-files.ts                          | Route at lines 136-151                              | PASS   |
| gitSvc.getLog wired in /history route              | grep "getLog" server/src/routes/chat-files.ts                            | `gitSvc.getLog(storageDir, ...)` at line 149        | PASS   |
| ChatFileHistoryEntry exported from shared          | grep "ChatFileHistoryEntry" packages/shared/src/index.ts                 | Exported at line 595                                | PASS   |
| ChatFileHistoryEntry interface fields correct      | grep -A5 "ChatFileHistoryEntry" shared/src/types/chat.ts                 | hash, date, message, author fields — matches gitSvc | PASS   |
| No TS errors in phase-25 files                     | tsc --noEmit (server) — filter phase-25 files                            | Zero errors; only pre-existing plugin-sdk errors    | PASS   |
| placeholderService still 161 lines                 | wc -l placeholder-service.ts                                             | 161                                                 | PASS   |
| VoiceRecordButton still 109 lines                  | wc -l VoiceRecordButton.tsx                                              | 109                                                 | PASS   |
| ChatCodeFilePreview still 176 lines                | wc -l ChatCodeFilePreview.tsx                                            | 176                                                 | PASS   |
| promote route still present                        | grep -c "promote" server/src/routes/chat-files.ts                        | 3 matches                                           | PASS   |

---

### Requirements Coverage

| Requirement | Source Plans      | Description (short)                                    | Status    | Evidence                                                              |
|-------------|-------------------|--------------------------------------------------------|-----------|-----------------------------------------------------------------------|
| FILE-01     | 25-00             | Local file storage directory structure                 | SATISFIED | Schema + StorageService directory layout                              |
| FILE-02     | 25-00             | libSQL files table with full metadata                  | SATISFIED | chat_files schema with all required columns                           |
| FILE-03     | 25-00             | libSQL file_references table                           | SATISFIED | chat_file_references schema + createReference service method          |
| FILE-04     | 25-00, 25-01      | Dual scoping (project + conversation)                  | SATISFIED | projectId nullable FK + conversationId on chatFiles                   |
| FILE-05     | 25-02             | File upload via drag-and-drop or button                | SATISFIED | ChatFileDropZone + useChatFileUpload + multer upload route            |
| FILE-06     | 25-03, 25-04      | Inline preview: images inline, code syntax-highlighted | SATISFIED | ChatFilePreview + ChatCodeFilePreview with hljs                       |
| FILE-07     | 25-04             | One-click download from chat                           | SATISFIED | ChatFileCard download anchor; REQUIREMENTS.md marked Complete         |
| FILE-08     | 25-07             | Agent-generated files tracked and linked               | SATISFIED | placeholderService + agent_generated branch in upload route           |
| FILE-09     | 25-06             | Git integration: every upload creates a commit         | SATISFIED | git-file-service.ts (101 lines) + gitSvc.commitFile at line 106       |
| FILE-10     | 25-06             | Version history: user can view git log per file        | SATISFIED | GET /files/:fileId/history at lines 136-151; gitSvc.getLog wired      |
| FILE-11     | 25-07             | PLACEHOLDERS.md manifest auto-maintained               | SATISFIED | placeholder-service.ts (161 lines) with addEntry/replaceEntry         |
| FILE-12     | 25-05             | File scope promotion from chat to project              | SATISFIED | PATCH /files/:fileId/promote + ChatFileCard FolderUp button           |
| FILE-13     | 25-04             | Cross-device access via HTTP API                       | SATISFIED | GET /files/:fileId/content serves stream; REQUIREMENTS.md Complete    |
| INPUT-02    | 25-02, 25-08      | File/image upload via drag-and-drop or button          | SATISFIED | ChatFileDropZone + upload hook + ChatInput integration                |
| INPUT-03    | 25-02, 25-08      | Paste image from clipboard                             | SATISFIED | handlePaste in ChatInput wired to upload hook                         |
| INPUT-04    | 25-08             | Voice input via Whisper with transcription preview     | SATISFIED | VoiceRecordButton + POST /transcribe + handleTranscription callback   |

All 16 requirement IDs satisfied. No orphaned requirements.

---

### Anti-Patterns Found

None blocking. The git commit call at line 106 uses `.catch(() => {})` (fire-and-forget), which is intentional — a git commit failure should not fail the upload. This is acceptable.

---

### Human Verification Required

#### 1. Drag-and-drop file upload

**Test:** Drag any file onto the chat input area
**Expected:** Drop zone overlay with dashed border and "Drop files here" text; on release, file uploads with a progress chip
**Why human:** Drag-and-drop visual feedback requires a running browser

#### 2. Clipboard paste upload

**Test:** Copy a screenshot image, focus the chat textarea, paste (Ctrl+V or Cmd+V)
**Expected:** Image upload begins immediately, progress chip appears above textarea
**Why human:** Clipboard paste requires a running browser

#### 3. File picker upload

**Test:** Click the Paperclip button in ChatInput, select any file from the native picker
**Expected:** Native file picker opens; selecting a file starts the upload and shows a pending chip above the textarea
**Why human:** Native file picker requires a running browser

#### 4. Syntax-highlighted code preview

**Test:** Attach a .ts or .py file to a chat message and view the sent message
**Expected:** ChatCodeFilePreview renders with syntax highlighting, copy button, language label, and download card below
**Why human:** highlight.js rendering requires a running browser

#### 5. Voice input transcription

**Test:** Click the microphone icon, speak a sentence, click the stop (square) button
**Expected:** Loader2 spinner shows while transcribing; transcription text inserted into textarea
**Why human:** MediaRecorder API and microphone permission require a running browser with audio hardware

#### 6. File scope promote button

**Test:** In a project-linked conversation, view a ChatFileCard. Click the FolderUp button.
**Expected:** File is promoted to project scope; FolderUp button disappears from the card
**Why human:** Requires running app with real project context and DB state

#### 7. Git commit created on file upload

**Test:** Upload a file via the chat interface. On the server, inspect the storage directory: `git -C <storage_dir> log --oneline` should show a new commit "Upload: <filename>"
**Expected:** A commit with the upload message appears in the git log
**Why human:** Requires running server with access to the file system storage directory

#### 8. File history API returns git log entries

**Test:** After uploading a file, call `GET /api/files/:fileId/history`
**Expected:** `{ "items": [{ "hash": "...", "date": "...", "message": "Upload: ...", "author": "Nexus File System" }] }`
**Why human:** Requires running server and a file that has been committed to git storage

---

## Summary

**All 15 observable truths are now VERIFIED.** All 16 requirements are SATISFIED. No blocking anti-patterns.

The two gaps from the previous verification (FILE-09 git integration, FILE-10 history endpoint) have been resolved by merging the worktree code:

- `server/src/services/git-file-service.ts` — 101 lines; substantive implementation using `execFile("git", ...)` with `ensureRepo`, `commitFile`, and `getLog` methods
- `server/src/routes/chat-files.ts` — now imports `gitFileService`, instantiates `gitSvc`, calls `gitSvc.commitFile` non-blocking on upload (line 106), and serves `GET /files/:fileId/history` via `gitSvc.getLog` (lines 136-151)
- `packages/shared/src/types/chat.ts` — `ChatFileHistoryEntry` interface (hash, date, message, author) exported from the shared package

No regressions detected in any previously-verified artifact.

The phase goal is **achieved at the code level**. Eight items require human browser/server verification for final confirmation of end-to-end behavior.

---

_Verified: 2026-04-01T00:00:00Z_
_Verifier: Claude (gsd-verifier) — final re-verification after worktree merge_
