ci: retrigger after LLM_BASE_URL secret fix

Rewrites the JSON repair algorithm to address two correctness bugs
identified in code review:

1. Interior quoted word before comma: "say "yes", and go" was
   misidentified as structural close because "," followed the quote.

2. JSON-shaped content in strings: {"key": "val"} inside a string
   value was being parsed as actual JSON structure.

The new approach:
- Distinguishes keys from values (only values need repair)
- Uses first-valid-candidate scan with deep lookahead
- Verifies that after a candidate close, the continuation is not just
  a structural char but a complete valid JSON pattern
- Validates keyword tokens (true/false/null) fully, not just first char
- Checks container closes recursively for valid continuation

Adds comprehensive tests for all reported edge cases plus a complex
combined scenario with nested JSON-like content, quoted words before
commas, and multiple failure modes in one string.

.gitea/actions/review/action.yml

@@ -74,14 +74,6 @@ inputs:
     description: 'Local file with additional system prompt instructions (e.g. security review focus)'
     required: false
     default: ''
-  persona:
-    description: 'Built-in persona name (security, architect, docs)'
-    required: false
-    default: ''
-  persona-file:
-    description: 'Path to persona JSON file with custom review focus'
-    required: false
-    default: ''
 
 runs:
   using: 'composite'
@@ -163,8 +155,6 @@ runs:
         LLM_PROVIDER: ${{ inputs.llm-provider }}
         UPDATE_EXISTING: ${{ inputs.update-existing }}
         SYSTEM_PROMPT_FILE: ${{ inputs.system-prompt-file }}
-        PERSONA: ${{ inputs.persona }}
-        PERSONA_FILE: ${{ inputs.persona-file }}
       run: |
         ARGS=""
         if [ "${{ inputs.dry-run }}" = "true" ]; then

.gitea/workflows/ci.yml

@@ -19,7 +19,6 @@ jobs:
       - run: go build -o review-bot ./cmd/review-bot
 
   # Self-review: builds from source since we're pre-release
-  # Models configured to match SAP AI Core deployments
   review:
     runs-on: ubuntu-24.04
     if: github.event_name == 'pull_request'
@@ -29,18 +28,12 @@ jobs:
         include:
           - name: sonnet
             token_secret: SONNET_REVIEW_TOKEN
-            provider: anthropic
+            model: gpt-5
-            llm_path: /anthropic/v1
-            model: anthropic--claude-4.6-sonnet
           - name: gpt
             token_secret: GPT_REVIEW_TOKEN
-            provider: openai
+            model: gpt-4.1
-            llm_path: /openai/v1
-            model: gpt-5
           - name: security
             token_secret: SECURITY_REVIEW_TOKEN
-            provider: openai
-            llm_path: /openai/v1
             model: gpt-5
             system_prompt_file: SECURITY_REVIEW.md
     steps:
@@ -56,10 +49,9 @@ jobs:
           PR_NUMBER: ${{ github.event.pull_request.number }}
           REVIEWER_TOKEN: ${{ secrets[matrix.token_secret] }}
           REVIEWER_NAME: ${{ matrix.name }}
-          LLM_BASE_URL: ${{ secrets.LLM_BASE_URL }}${{ matrix.llm_path }}
+          LLM_BASE_URL: ${{ secrets.LLM_BASE_URL }}
           LLM_API_KEY: ${{ secrets.LLM_API_KEY }}
           LLM_MODEL: ${{ matrix.model }}
-          LLM_PROVIDER: ${{ matrix.provider }}
           CONVENTIONS_FILE: "CONVENTIONS.md"
           PATTERNS_REPO: "rodin/go-patterns"
           PATTERNS_FILES: "README.md,patterns/"

.gitea/workflows/pr-ready-gate.yml

@@ -1,40 +0,0 @@
-name: PR Ready Gate
-
-on:
-  pull_request:
-    types: [synchronize]
-
-jobs:
-  clear-labels:
-    runs-on: ubuntu-24.04
-    if: |
-      contains(github.event.pull_request.labels.*.name, 'ready') ||
-      contains(github.event.pull_request.labels.*.name, 'self-reviewed')
-    steps:
-      - name: Remove ready and self-reviewed labels, reassign to author
-        env:
-          GITEA_TOKEN: ${{ secrets.RODIN_TOKEN }}
-        run: |
-          PR_NUMBER=${{ github.event.pull_request.number }}
-          AUTHOR=${{ github.event.pull_request.user.login }}
-          READY_LABEL_ID=38
-          SELF_REVIEWED_LABEL_ID=37
-          
-          # Remove ready label if present
-          curl -sS -X DELETE \
-            -H "Authorization: token $GITEA_TOKEN" \
-            "https://gitea.weiker.me/api/v1/repos/${{ github.repository }}/issues/${PR_NUMBER}/labels/${READY_LABEL_ID}" || true
-          
-          # Remove self-reviewed label if present
-          curl -sS -X DELETE \
-            -H "Authorization: token $GITEA_TOKEN" \
-            "https://gitea.weiker.me/api/v1/repos/${{ github.repository }}/issues/${PR_NUMBER}/labels/${SELF_REVIEWED_LABEL_ID}" || true
-          
-          # Reassign to author
-          curl -sS -X PATCH \
-            -H "Authorization: token $GITEA_TOKEN" \
-            -H "Content-Type: application/json" \
-            -d "{\"assignees\": [\"${AUTHOR}\"]}" \
-            "https://gitea.weiker.me/api/v1/repos/${{ github.repository }}/pulls/${PR_NUMBER}"
-          
-          echo "Cleared ready/self-reviewed labels and reassigned PR #${PR_NUMBER} to ${AUTHOR}"

README.md

@@ -182,8 +182,6 @@ Prints the review to CI logs without posting to the PR. Useful for testing promp
 | `patterns-repo` | No | `""` | Comma-separated repos with language patterns (e.g. `rodin/go-patterns`) |
 | `patterns-files` | No | `README.md` | Files/directories to fetch from pattern repos |
 | `system-prompt-file` | No | `""` | Local file with additional system prompt instructions |
-| `persona` | No | `""` | Built-in persona name (security, architect, docs) |
-| `persona-file` | No | `""` | Path to persona JSON file with custom review focus |
 | `temperature` | No | `0` | LLM temperature (0 = server default) |
 | `timeout` | No | `300` | LLM request timeout in seconds |
 | `dry-run` | No | `false` | Print review to stdout instead of posting |
@@ -331,100 +329,3 @@ budget/             Token estimation + context trimming
 ## License
 
 MIT
-
-## Review Personas
-
-Personas provide role-based review specialization. Instead of generic code review, each persona focuses on a specific domain (security, architecture, documentation) with tailored prompts and severity calibration.
-
-### Built-in Personas
-
-| Persona | Focus |
-|---------|-------|
-| `security` | Vulnerabilities, auth bypass, secrets exposure, injection attacks |
-| `architect` | Design patterns, code organization, API contracts, testability |
-| `docs` | Documentation quality, API clarity, error messages |
-
-### Using Built-in Personas
-
-```yaml
-- uses: rodin/review-bot/.gitea/actions/review@v1
-  with:
-    reviewer-name: security
-    persona: security
-    llm-model: claude-opus-4-20250514  # Security benefits from strong reasoning
-    ...
-```
-
-### Multiple Personas in Parallel
-
-```yaml
-jobs:
-  review:
-    strategy:
-      matrix:
-        include:
-          - name: security
-            persona: security
-          - name: architect
-            persona: architect
-    steps:
-      - uses: rodin/review-bot/.gitea/actions/review@v1
-        with:
-          reviewer-name: ${{ matrix.name }}
-          persona: ${{ matrix.persona }}
-          ...
-```
-
-Each persona posts independently with its own sentinel, so reviews don't interfere.
-
-### Custom Personas
-
-Create a JSON file with your domain-specific review focus:
-
-```json
-{
-  "name": "trading",
-  "display_name": "Trading Domain Expert",
-  "identity": "You are a trading systems expert reviewing code for correctness.\n\nYour expertise:\n- Order lifecycle and state machines\n- Fill handling and partial fills\n- Position tracking and P&L calculations\n- Event sourcing invariants",
-  "focus": [
-    "Order state machine correctness",
-    "Fill handling edge cases (partial, overfill)",
-    "Position and P&L calculation accuracy",
-    "Event replay determinism",
-    "Decimal precision for money"
-  ],
-  "ignore": [
-    "Code style",
-    "General performance",
-    "Documentation formatting"
-  ],
-  "severity": {
-    "major": "Bugs that cause incorrect positions, fills, or money calculations",
-    "minor": "Edge cases that could cause issues under unusual conditions",
-    "nit": "Clarity improvements for domain logic"
-  }
-}
-```
-
-Use it in CI:
-
-```yaml
-- uses: rodin/review-bot/.gitea/actions/review@v1
-  with:
-    reviewer-name: trading
-    persona-file: .review/personas/trading.json
-    ...
-```
-
-### Persona vs system-prompt-file
-
-| Feature | `persona` / `persona-file` | `system-prompt-file` |
-|---------|---------------------------|----------------------|
-| Replaces base prompt | Yes | No (appends) |
-| Structured format | Yes (JSON) | No (freeform) |
-| Focus/ignore lists | Yes | Manual |
-| Severity calibration | Yes | Manual |
-| Header display name | Yes | No |
-| Built-in options | Yes | No |
-
-Use personas for domain-specialized reviews. Use `system-prompt-file` for minor tweaks to the generic review.

cmd/review-bot/main.go

@@ -70,8 +70,6 @@ func main() {
 	llmTemp := flag.Float64("llm-temperature", envOrDefaultFloat("LLM_TEMPERATURE", 0), "LLM temperature (0 = server default)")
 	llmTimeout := flag.Int("llm-timeout", envOrDefaultInt("LLM_TIMEOUT", 300), "LLM request timeout in seconds (default 300)")
 	llmProvider := flag.String("llm-provider", envOrDefault("LLM_PROVIDER", "openai"), "LLM API provider: openai or anthropic")
-	personaName := flag.String("persona", envOrDefault("PERSONA", ""), "Built-in persona name (security, architect, docs)")
-	personaFile := flag.String("persona-file", envOrDefault("PERSONA_FILE", ""), "Path to persona JSON file")
 
 	flag.Parse()
 
@@ -93,36 +91,6 @@ func main() {
 		os.Exit(1)
 	}
 
-	// Validate persona flags are mutually exclusive
-	if *personaName != "" && *personaFile != "" {
-		slog.Error("--persona and --persona-file are mutually exclusive")
-		os.Exit(1)
-	}
-
-	// Load persona if specified
-	var persona *review.Persona
-	if *personaName != "" {
-		var err error
-		persona, err = review.LoadBuiltinPersona(*personaName)
-		if err != nil {
-			slog.Error("failed to load persona", "persona", *personaName, "error", err)
-			os.Exit(1)
-		}
-		slog.Info("loaded built-in persona", "persona", persona.Name, "display", persona.DisplayName)
-	} else if *personaFile != "" {
-		resolvedPath, err := validateWorkspacePath(*personaFile, "persona-file")
-		if err != nil {
-			slog.Error("invalid persona-file path", "error", err)
-			os.Exit(1)
-		}
-		persona, err = review.LoadPersona(resolvedPath)
-		if err != nil {
-			slog.Error("failed to load persona file", "file", *personaFile, "error", err)
-			os.Exit(1)
-		}
-		slog.Info("loaded persona from file", "file", *personaFile, "persona", persona.Name)
-	}
-
 	// Validate reviewer-name: only safe characters allowed in sentinel
 	if err := validateReviewerName(*reviewerName); err != nil {
 		slog.Error("invalid reviewer name", "error", err)
@@ -233,14 +201,34 @@ func main() {
 	// Step 6b: Load additional system prompt if specified
 	additionalPrompt := ""
 	if *systemPromptFile != "" {
-		resolvedPath, err := validateWorkspacePath(*systemPromptFile, "system-prompt-file")
+		workspace := os.Getenv("GITHUB_WORKSPACE")
+		if workspace == "" {
+			workspace, _ = os.Getwd()
+		}
+		absWorkspace, err := filepath.Abs(workspace)
 		if err != nil {
-			slog.Error("invalid system-prompt-file path", "error", err)
+			slog.Error("failed to resolve workspace path", "error", err)
+			os.Exit(1)
+		}
+		promptPath := filepath.Join(absWorkspace, *systemPromptFile)
+		promptPath = filepath.Clean(promptPath)
+		if !strings.HasPrefix(promptPath, absWorkspace+string(filepath.Separator)) && promptPath != absWorkspace {
+			slog.Error("system-prompt-file resolves outside workspace", "path", promptPath, "workspace", absWorkspace)
+			os.Exit(1)
+		}
+		// Resolve symlinks and re-validate to prevent symlink traversal
+		resolvedPath, err := filepath.EvalSymlinks(promptPath)
+		if err != nil {
+			slog.Error("failed to resolve system prompt file", "path", promptPath, "error", err)
+			os.Exit(1)
+		}
+		if !strings.HasPrefix(resolvedPath, absWorkspace+string(filepath.Separator)) && resolvedPath != absWorkspace {
+			slog.Error("system-prompt-file symlink resolves outside workspace", "resolved", resolvedPath, "workspace", absWorkspace)
 			os.Exit(1)
 		}
 		data, err := os.ReadFile(resolvedPath)
 		if err != nil {
-			slog.Error("failed to read system prompt file", "path", *systemPromptFile, "error", err)
+			slog.Error("failed to read system prompt file", "path", promptPath, "error", err)
 			os.Exit(1)
 		}
 		additionalPrompt = string(data)
@@ -248,13 +236,7 @@ func main() {
 	}
 
 	// Step 7: Budget-aware prompt assembly
-	var systemBase string
+	systemBase := review.BuildSystemBase()
-	if persona != nil {
-		systemBase = review.BuildPersonaSystemPrompt(persona)
-		slog.Debug("using persona system prompt", "persona", persona.Name)
-	} else {
-		systemBase = review.BuildSystemBase()
-	}
 	if additionalPrompt != "" {
 		systemBase += "\n\n## Additional Review Instructions\n\n" + additionalPrompt
 	}
@@ -272,51 +254,30 @@ func main() {
 		slog.Warn("context trimmed to fit budget", "trimmed", budgetResult.Trimmed)
 	}
 
-	// Step 8: Call LLM (with retry on parse failure)
+	// Step 8: Call LLM
 	slog.Info("sending request to LLM", "model", *llmModel)
 	messages := []llm.Message{
 		{Role: "system", Content: budgetResult.SystemPrompt},
 		{Role: "user", Content: budgetResult.UserPrompt},
 	}
 
-	var response string
+	response, err := llmClient.Complete(ctx, messages)
-	var result *review.ReviewResult
+	if err != nil {
-	for attempt := 1; attempt <= 2; attempt++ {
+		slog.Error("LLM request failed", "model", *llmModel, "error", err)
-		if attempt > 1 {
+		os.Exit(1)
-			slog.Warn("retrying LLM request after parse failure", "attempt", attempt)
+	}
-			time.Sleep(time.Second)
+	slog.Info("LLM response received", "bytes", len(response))
-		}
 
-		response, err = llmClient.Complete(ctx, messages)
+	// Step 9: Parse response
-		if err != nil {
+	result, err := review.ParseResponse(response)
-			slog.Error("LLM request failed", "model", *llmModel, "error", err, "attempt", attempt)
+	if err != nil {
-			if attempt == 2 {
+		slog.Error("failed to parse LLM response", "error", err)
-				os.Exit(1)
+		os.Exit(1)
-			}
-			continue
-		}
-		slog.Info("LLM response received", "bytes", len(response), "attempt", attempt)
-
-		// Step 9: Parse response
-		result, err = review.ParseResponse(response)
-		if err != nil {
-			slog.Error("failed to parse LLM response", "error", err, "attempt", attempt)
-			if attempt == 2 {
-				os.Exit(1)
-			}
-			continue
-		}
-		break
 	}
 	slog.Info("review parsed", "verdict", result.Verdict, "findings", len(result.Findings))
 
 	// Step 10: Format and post review
-	var reviewBody string
+	reviewBody := review.FormatMarkdown(result, *reviewerName)
-	if persona != nil && persona.DisplayName != "" {
-		reviewBody = review.FormatMarkdownWithDisplay(result, persona.DisplayName, *reviewerName)
-	} else {
-		reviewBody = review.FormatMarkdown(result, *reviewerName)
-	}
 
 	// Add commit footer so readers know which commit was evaluated
 	if pr.Head.Sha != "" {
@@ -338,24 +299,6 @@ func main() {
 
 	sentinel := fmt.Sprintf("<!-- review-bot:%s -->", *reviewerName)
 
-	// Stale check: verify HEAD hasn't moved since we started
-	evaluatedSHA := pr.Head.Sha
-	var currentSHA string
-	currentPR, err := giteaClient.GetPullRequest(ctx, owner, repoName, prNumber)
-	if err != nil {
-		slog.Warn("could not re-fetch PR for stale check", "pr", prNumber, "error", err)
-		// currentSHA stays empty — shouldSkipStaleReview will return false
-	} else {
-		currentSHA = currentPR.Head.Sha
-	}
-	if shouldSkipStaleReview(evaluatedSHA, currentSHA) {
-		slog.Warn("HEAD moved during review — skipping stale review",
-			"evaluated", evaluatedSHA,
-			"current", currentSHA,
-			"pr", prNumber)
-		return
-	}
-
 	// Map findings to inline comments for lines present in the diff
 	diffRanges := gitea.ParseDiffNewLines(diff)
 	var inlineComments []gitea.ReviewComment
@@ -610,36 +553,6 @@ func validateReviewerName(name string) error {
 	return nil
 }
 
-// validateWorkspacePath ensures a file path is within the workspace and resolves
-// symlinks to prevent traversal attacks. Returns the resolved absolute path or
-// an error if the path is outside the workspace.
-func validateWorkspacePath(path, pathName string) (string, error) {
-	workspace := os.Getenv("GITHUB_WORKSPACE")
-	if workspace == "" {
-		workspace, _ = os.Getwd()
-	}
-	absWorkspace, err := filepath.Abs(workspace)
-	if err != nil {
-		return "", fmt.Errorf("failed to resolve workspace path: %w", err)
-	}
-	// Join and clean the path
-	fullPath := filepath.Join(absWorkspace, path)
-	fullPath = filepath.Clean(fullPath)
-	// Check path is within workspace
-	if !strings.HasPrefix(fullPath, absWorkspace+string(filepath.Separator)) && fullPath != absWorkspace {
-		return "", fmt.Errorf("%s resolves outside workspace: path=%s workspace=%s", pathName, fullPath, absWorkspace)
-	}
-	// Resolve symlinks and re-validate to prevent symlink traversal
-	resolvedPath, err := filepath.EvalSymlinks(fullPath)
-	if err != nil {
-		return "", fmt.Errorf("failed to resolve %s: %w", pathName, err)
-	}
-	if !strings.HasPrefix(resolvedPath, absWorkspace+string(filepath.Separator)) && resolvedPath != absWorkspace {
-		return "", fmt.Errorf("%s symlink resolves outside workspace: resolved=%s workspace=%s", pathName, resolvedPath, absWorkspace)
-	}
-	return resolvedPath, nil
-}
-
 // buildSupersededBody creates the body for a superseded review: struck-through banner
 // with collapsed original content and the commit it was evaluated against.
 func buildSupersededBody(originalBody, commitSHA, newReviewURL, sentinel string) string {
@@ -737,16 +650,3 @@ func findAllOwnReviews(reviews []gitea.Review, sentinel string) []gitea.Review {
 	}
 	return result
 }
-
-// shouldSkipStaleReview reports whether to skip posting because HEAD moved.
-// Returns true (skip) if evaluatedSHA differs from currentSHA.
-// Returns false (don't skip) if:
-//   - SHAs match (no movement)
-//   - currentSHA is empty (re-fetch failed; prefer posting stale over failing)
-func shouldSkipStaleReview(evaluatedSHA, currentSHA string) bool {
-	if currentSHA == "" {
-		// Re-fetch failed; better to post potentially stale than fail
-		return false
-	}
-	return evaluatedSHA != currentSHA
-}

cmd/review-bot/main_test.go

@@ -7,7 +7,6 @@ import (
 	"os"
 	"os/exec"
 	"strings"
-	"path/filepath"
 	"testing"
 
 	"gitea.weiker.me/rodin/review-bot/gitea"
@@ -46,113 +45,6 @@ func TestValidateReviewerName(t *testing.T) {
 	}
 }
 
-func TestValidateWorkspacePath(t *testing.T) {
-	// Create a temp directory as our workspace
-	tmpDir := t.TempDir()
-
-	// Create a valid file inside the workspace
-	validFile := filepath.Join(tmpDir, "valid.json")
-	if err := os.WriteFile(validFile, []byte("{}"), 0644); err != nil {
-		t.Fatalf("failed to create test file: %v", err)
-	}
-
-	// Create a subdirectory with a file
-	subDir := filepath.Join(tmpDir, "subdir")
-	if err := os.MkdirAll(subDir, 0755); err != nil {
-		t.Fatalf("failed to create subdir: %v", err)
-	}
-	nestedFile := filepath.Join(subDir, "nested.json")
-	if err := os.WriteFile(nestedFile, []byte("{}"), 0644); err != nil {
-		t.Fatalf("failed to create nested file: %v", err)
-	}
-
-	// Create a symlink pointing outside the workspace
-	symlinkPath := filepath.Join(tmpDir, "evil-symlink.json")
-	if err := os.Symlink("/etc/passwd", symlinkPath); err != nil {
-		t.Fatalf("failed to create symlink: %v", err)
-	}
-
-	// Save and restore GITHUB_WORKSPACE
-	origWorkspace := os.Getenv("GITHUB_WORKSPACE")
-	defer os.Setenv("GITHUB_WORKSPACE", origWorkspace)
-
-	tests := []struct {
-		name      string
-		workspace string
-		path      string
-		wantErr   bool
-		errMatch  string
-	}{
-		{
-			name:      "valid relative path",
-			workspace: tmpDir,
-			path:      "valid.json",
-			wantErr:   false,
-		},
-		{
-			name:      "valid nested path",
-			workspace: tmpDir,
-			path:      "subdir/nested.json",
-			wantErr:   false,
-		},
-		{
-			name:      "path traversal attempt",
-			workspace: tmpDir,
-			path:      "../../../etc/passwd",
-			wantErr:   true,
-			errMatch:  "resolves outside workspace",
-		},
-		{
-			name:      "absolute path gets normalized to relative",
-			workspace: tmpDir,
-			path:      "/etc/passwd",
-			wantErr:   true,
-			errMatch:  "failed to resolve", // filepath.Join strips leading / making it <workspace>/etc/passwd which doesn't exist
-		},
-		{
-			name:      "nonexistent file",
-			workspace: tmpDir,
-			path:      "nonexistent.json",
-			wantErr:   true,
-			errMatch:  "failed to resolve",
-		},
-		{
-			name:      "symlink escaping workspace",
-			workspace: tmpDir,
-			path:      "evil-symlink.json",
-			wantErr:   true,
-			errMatch:  "symlink resolves outside workspace",
-		},
-	}
-
-	for _, tc := range tests {
-		t.Run(tc.name, func(t *testing.T) {
-			os.Setenv("GITHUB_WORKSPACE", tc.workspace)
-			resolved, err := validateWorkspacePath(tc.path, "test-file")
-
-			if tc.wantErr {
-				if err == nil {
-					t.Errorf("expected error for %q, got nil", tc.path)
-				} else if tc.errMatch != "" && !strings.Contains(err.Error(), tc.errMatch) {
-					t.Errorf("error %q should contain %q", err.Error(), tc.errMatch)
-				}
-			} else {
-				if err != nil {
-					t.Errorf("expected no error for %q, got %v", tc.path, err)
-				}
-				if resolved == "" {
-					t.Error("expected non-empty resolved path")
-				}
-				// Verify resolved path is within workspace
-				if !strings.HasPrefix(resolved, tc.workspace) {
-					t.Errorf("resolved path %q not within workspace %q", resolved, tc.workspace)
-				}
-			}
-		})
-	}
-}
-
-
 func makeReview(id int64, login, state string, stale bool, body string) gitea.Review {
 	r := gitea.Review{
 		ID:    id,
@@ -970,53 +862,3 @@ func TestFindAllOwnReviews(t *testing.T) {
 		}
 	}
 }
-
-func TestShouldSkipStaleReview(t *testing.T) {
-	tests := []struct {
-		name         string
-		evaluatedSHA string
-		currentSHA   string
-		wantSkip     bool
-	}{
-		{
-			name:         "matching SHAs",
-			evaluatedSHA: "abc123def456",
-			currentSHA:   "abc123def456",
-			wantSkip:     false,
-		},
-		{
-			name:         "different SHAs",
-			evaluatedSHA: "abc123def456",
-			currentSHA:   "xyz789abc123",
-			wantSkip:     true,
-		},
-		{
-			name:         "empty current SHA (re-fetch failed)",
-			evaluatedSHA: "abc123def456",
-			currentSHA:   "",
-			wantSkip:     false,
-		},
-		{
-			name:         "both empty (edge case)",
-			evaluatedSHA: "",
-			currentSHA:   "",
-			wantSkip:     false,
-		},
-		{
-			name:         "only current empty",
-			evaluatedSHA: "abc123",
-			currentSHA:   "",
-			wantSkip:     false,
-		},
-	}
-
-	for _, tc := range tests {
-		t.Run(tc.name, func(t *testing.T) {
-			got := shouldSkipStaleReview(tc.evaluatedSHA, tc.currentSHA)
-			if got != tc.wantSkip {
-				t.Errorf("shouldSkipStaleReview(%q, %q) = %v, want %v",
-					tc.evaluatedSHA, tc.currentSHA, got, tc.wantSkip)
-			}
-		})
-	}
-}

docs/DESIGN-51-personas.md

@@ -1,353 +0,0 @@
-# Design: Role-based Review Personas (Issue #51)
-
-## Problem
-
-Current review-bot performs generic code review. Every reviewer (regardless of `reviewer-name`) uses the same base prompt and evaluates the same concerns. This leads to:
-
-1. **Redundancy** — Two reviewers (e.g., GPT + Claude twins) often flag identical issues
-2. **Gaps** — Generic reviewers miss specialized concerns (security, domain logic, architecture)
-3. **Noise** — NITs about style mixed with critical security findings
-4. **No ownership** — Findings lack clear domain attribution
-
-## Constraints
-
-- Must work with existing CLI flags and CI workflow patterns
-- Must not break backwards compatibility (existing configs still work)
-- Must integrate cleanly with the budget system (personas add to context)
-- Multiple personas running in parallel must not interfere with each other
-- Each persona must have clear scope boundaries (no duplication)
-
-## Proposed Approach
-
-### 1. Persona Definition
-
-A persona is a named review role with:
-- **Identity** — Who am I? What's my expertise?
-- **Focus** — What do I look for?
-- **Scope boundaries** — What do I explicitly NOT comment on?
-- **Severity calibration** — What counts as MAJOR/MINOR/NIT for MY domain?
-
-Personas are defined in YAML files that can live:
-1. In the pattern repos (shared across projects)
-2. In the target repo (project-specific personas)
-3. Inline via a new `--persona-file` flag
-
-### 2. Persona File Format
-
-```yaml
-# .review/personas/security.yaml
-name: security
-display_name: Security Specialist
-model_preference: opus  # optional hint for expensive analysis
-
-identity: |
-  You are a security specialist reviewing code for vulnerabilities.
-  Your expertise: OWASP Top 10, injection attacks, auth/authz, secrets management,
-  event sourcing security (replay attacks, event injection).
-
-focus:
-  - Injection attacks (SQL, command, path traversal, template)
-  - Authentication and authorization gaps
-  - Secrets exposure (hardcoded credentials, tokens in logs)
-  - Input validation (unsanitized input, unsafe deserialization)
-  - Race conditions with security implications
-  - Event sourcing attack vectors
-
-ignore:
-  - Code style and naming conventions
-  - Performance (unless security-related)
-  - Documentation
-  - General code quality
-  - Test coverage
-
-severity:
-  critical: "Remote code execution, auth bypass, data exfiltration"
-  major: "Privilege escalation, information disclosure, DoS"
-  minor: "Missing rate limiting, verbose errors"
-  nit: "Theoretical risk with low exploitability"
-
-output_format: |
-  For each finding:
-  - Severity: [CRITICAL|MAJOR|MINOR|NIT]
-  - Attack vector: How could this be exploited?
-  - Evidence: Code snippet showing the vulnerability
-  - Recommendation: Specific fix
-```
-
-### 3. New CLI Flags
-
-```
---persona-file PATH      Path to persona YAML file (local or in repo)
---persona NAME           Built-in persona name (security, architect, domain)
-```
-
-Either flag sets the persona. If neither is provided, behavior is unchanged (generic review).
-
-### 4. Prompt Assembly
-
-Current flow:
-```
-SystemBase → Patterns → Conventions → [LLM]
-```
-
-New flow with persona:
-```
-PersonaPrompt (from YAML) → Patterns (filtered?) → Conventions → [LLM]
-```
-
-The persona's identity/focus/ignore/severity sections become the system prompt, replacing the generic "You are an expert code reviewer" base.
-
-### 5. Built-in Personas
-
-Ship with these built-in personas (loadable via `--persona NAME`):
-
-| Name | Focus |
-|------|-------|
-| `security` | Vulnerabilities, auth, secrets |
-| `architect` | Patterns, consistency, design |
-| `domain` | Business logic (requires repo-specific config) |
-| `docs` | Documentation, API clarity |
-
-Built-in personas live in `review/personas/` as embedded Go assets or YAML shipped with the binary.
-
-### 6. CI Workflow Integration
-
-Single persona:
-```yaml
-- uses: rodin/review-bot/.gitea/actions/review@v1
-  with:
-    reviewer-name: security
-    persona: security
-    ...
-```
-
-Multiple personas (parallel jobs):
-```yaml
-jobs:
-  review:
-    strategy:
-      matrix:
-        include:
-          - name: security
-            persona: security
-          - name: architect
-            persona: architect
-    steps:
-      - uses: rodin/review-bot/.gitea/actions/review@v1
-        with:
-          reviewer-name: ${{ matrix.name }}
-          persona: ${{ matrix.persona }}
-```
-
-Custom persona from repo:
-```yaml
-- uses: rodin/review-bot/.gitea/actions/review@v1
-  with:
-    reviewer-name: trading
-    persona-file: .review/personas/trading.yaml
-```
-
-### 7. Persona + Patterns Interaction
-
-Some personas benefit from filtered patterns:
-- Security → only security-related patterns
-- Architect → all patterns (structural focus)
-- Domain → domain docs, not language patterns
-
-For v1, keep it simple: all patterns are included regardless of persona. Future enhancement could add `patterns_filter` to persona YAML.
-
-### 8. Output Format Changes
-
-Persona name appears in the review header:
-```markdown
-# Security Review
-
-## Summary
-No critical vulnerabilities found in this change.
-
-## Findings
-| # | Severity | File | Line | Finding |
-...
-
-## Recommendation
-**APPROVE** — No security-relevant issues detected.
-
----
-*Review by security*
-<!-- review-bot:security -->
-```
-
-## State/Data Model
-
-### Persona struct
-
-```go
-// review/persona.go
-type Persona struct {
-    Name          string   `yaml:"name"`
-    DisplayName   string   `yaml:"display_name"`
-    ModelPref     string   `yaml:"model_preference,omitempty"`
-    Identity      string   `yaml:"identity"`
-    Focus         []string `yaml:"focus"`
-    Ignore        []string `yaml:"ignore"`
-    Severity      Severity `yaml:"severity"`
-    OutputFormat  string   `yaml:"output_format,omitempty"`
-}
-
-type Severity struct {
-    Critical string `yaml:"critical"`
-    Major    string `yaml:"major"`
-    Minor    string `yaml:"minor"`
-    Nit      string `yaml:"nit"`
-}
-```
-
-### Loading precedence
-
-1. `--persona-file PATH` → load from local file system
-2. `--persona NAME` → load from embedded built-ins
-3. Neither → use generic system prompt (current behavior)
-
-## Error Cases
-
-| Error | Handling |
-|-------|----------|
-| Persona file not found | Fatal exit with clear message |
-| Invalid YAML in persona file | Fatal exit with parse error |
-| Both `--persona` and `--persona-file` specified | Fatal exit: mutually exclusive |
-| Unknown built-in persona name | Fatal exit with list of valid names |
-| Empty identity in persona | Warning, fall back to generic prompt |
-
-## Edge Cases
-
-- **Empty focus list**: Valid — persona relies on identity alone
-- **Empty ignore list**: Valid — no explicit scope exclusions
-- **No severity section**: Use default MAJOR/MINOR/NIT definitions
-- **Model preference set but budget insufficient**: Ignore preference, log warning
-- **Persona file in pattern repo**: Fetch like other pattern files
-
-## Testing Strategy
-
-### Unit tests
-- `persona_test.go`: Parse valid/invalid YAML, validate required fields
-- `prompt_test.go`: Verify persona prompt assembly
-- Integration with budget: persona prompts count toward token limit
-
-### Integration tests
-- End-to-end with `--persona security` (built-in)
-- End-to-end with `--persona-file custom.yaml`
-- Backwards compatibility: no flags = generic behavior
-
-### Manual verification
-- Run security persona on a PR with obvious vulnerability
-- Verify security persona ignores style issues
-- Verify non-security persona doesn't flag security issues
-
-## Implementation Phases
-
-### Phase 1: Persona types and loading
-- [ ] `review/persona.go`: Persona struct + YAML parsing
-- [ ] `review/persona_test.go`: Unit tests
-- [ ] Embed built-in personas in binary
-- [ ] Compiles clean, tests pass
-
-### Phase 2: Prompt generation
-- [ ] `review/prompt.go`: `BuildPersonaPrompt(p Persona) string`
-- [ ] Modify `BuildSystemBase()` to accept optional persona
-- [ ] Integrate persona prompt with budget system
-- [ ] Tests for prompt assembly
-
-### Phase 3: CLI integration
-- [ ] Add `--persona` and `--persona-file` flags
-- [ ] Flag validation (mutually exclusive, valid names)
-- [ ] Load persona based on flags
-- [ ] Pass persona to prompt builder
-
-### Phase 4: Action integration
-- [ ] Add `persona` and `persona-file` inputs to action.yml
-- [ ] Update README with persona examples
-- [ ] End-to-end CI test
-
-### Phase 5: Built-in personas
-- [ ] `security.yaml` built-in
-- [ ] `architect.yaml` built-in
-- [ ] `docs.yaml` built-in
-- [ ] Document each persona's focus
-
-## Open Questions
-
-1. **Persona file location in repo**: Should we support `--persona-file .review/security.yaml` where the file is fetched from the PR's repo (like conventions)? This adds complexity but enables project-specific personas without action changes.
-
-2. **Model preference enforcement**: If persona specifies `model_preference: opus` but the action uses a different model, should we warn? Override? Ignore? Current thinking: log warning, use the specified model (user controls model via action input).
-
-3. **Severity override output**: If persona defines custom severity levels (CRITICAL), should the JSON output include them, or map back to standard MAJOR/MINOR/NIT? Current thinking: keep standard output format, use severity calibration only for prompt guidance.
-
-## Completion Checklist
-
-1. Persona struct matches YAML schema exactly?
-2. Built-in personas embedded in binary (not external files)?
-3. `--persona` and `--persona-file` are mutually exclusive?
-4. Unknown persona name produces clear error with valid options?
-5. Empty persona file fields have sensible defaults?
-6. Persona prompt integrates with budget system (token counting)?
-7. Backwards compatibility: no flags = current behavior?
-8. Review header shows persona display name?
-9. Sentinel still uses reviewer-name (not persona name)?
-10. Unit tests cover parse errors, missing fields, valid YAML?
-
-## Design Review Findings (Self-Review)
-
-### Finding 1: Severity Mapping
-The persona YAML allows `critical` severity, but the LLM output parser (`review/parser.go`) only accepts MAJOR/MINOR/NIT. 
-
-**Resolution:** Keep standard output format. Persona severity section is ONLY for calibrating the LLM's judgment (prompt guidance). Output must still use MAJOR/MINOR/NIT. Document this clearly in persona format docs.
-
-### Finding 2: Embedding Built-in Personas
-Go doesn't natively embed YAML. Must use `//go:embed` directive (Go 1.16+).
-
-**Resolution:** Create `review/personas/` directory with YAML files and use:
-```go
-//go:embed personas/*.yaml
-var embeddedPersonas embed.FS
-```
-
-### Finding 3: display_name vs reviewer-name
-Design says header shows "persona display name" but sentinel uses "reviewer-name". This is correct - they serve different purposes:
-- `display_name` → human-readable header ("Security Specialist Review")
-- `reviewer-name` → machine sentinel for cleanup (`<!-- review-bot:security -->`)
-
-When persona is used, `display_name` takes precedence for the header title, but `reviewer-name` (CLI flag) is still used for the sentinel.
-
-## Design Revision: JSON Instead of YAML
-
-**Reason:** Project convention is "Go standard library only — no external dependencies."
-
-YAML requires `gopkg.in/yaml.v3` or similar. To maintain zero dependencies, persona files will use JSON instead.
-
-### Updated Persona File Format
-
-```json
-{
-  "name": "security",
-  "display_name": "Security Specialist",
-  "model_preference": "opus",
-  "identity": "You are a security specialist reviewing code for vulnerabilities.\nYour expertise: OWASP Top 10, injection attacks, auth/authz, secrets management.",
-  "focus": [
-    "Injection attacks (SQL, command, path traversal, template)",
-    "Authentication and authorization gaps",
-    "Secrets exposure (hardcoded credentials, tokens in logs)"
-  ],
-  "ignore": [
-    "Code style and naming conventions",
-    "Performance (unless security-related)",
-    "Documentation"
-  ],
-  "severity": {
-    "major": "Privilege escalation, information disclosure, DoS",
-    "minor": "Missing rate limiting, verbose errors",
-    "nit": "Theoretical risk with low exploitability"
-  }
-}
-```
-
-This maintains all the same fields but uses JSON encoding, which Go handles natively via `encoding/json`.

llm/client.go

@@ -75,52 +75,12 @@ type Message struct {
 // Complete sends a chat completion request and returns the assistant's response content.
 // The first message with role "system" is treated as the system prompt.
 func (c *Client) Complete(ctx context.Context, messages []Message) (string, error) {
-	var result string
+	switch c.provider {
-	var err error
+	case ProviderAnthropic:
-
+		return c.completeAnthropic(ctx, messages)
-	for attempt := 0; attempt < 2; attempt++ {
+	default:
-		switch c.provider {
+		return c.completeOpenAI(ctx, messages)
-		case ProviderAnthropic:
-			result, err = c.completeAnthropic(ctx, messages)
-		default:
-			result, err = c.completeOpenAI(ctx, messages)
-		}
-
-		if err == nil {
-			return result, nil
-		}
-
-		// Only retry on response body read errors (transient network issues).
-		// Do not retry on context cancellation, status errors, or parse errors
-		// that indicate a structural API problem.
-		if !isRetryableError(err) {
-			return "", err
-		}
-
-		if attempt == 0 && ctx.Err() == nil {
-			// Brief pause before retry to allow transient issues to resolve.
-			time.Sleep(500 * time.Millisecond)
-		}
 	}
-
-	return "", err
-}
-
-// isRetryableError returns true for transient errors worth retrying.
-func isRetryableError(err error) bool {
-	if err == nil {
-		return false
-	}
-	s := err.Error()
-	// Body read failures (connection reset, truncation)
-	if strings.Contains(s, "read response") {
-		return true
-	}
-	// Unexpected body length (our content-length validation)
-	if strings.Contains(s, "body length mismatch") {
-		return true
-	}
-	return false
 }
 
 // --- OpenAI-compatible implementation ---
@@ -271,12 +231,6 @@ func (c *Client) doRequest(req *http.Request, parse func([]byte) (string, error)
 		return "", fmt.Errorf("read response: %w", err)
 	}
 
-	// Validate body length against Content-Length header when present.
-	// A mismatch indicates the response was truncated in transit.
-	if cl := resp.ContentLength; cl > 0 && int64(len(body)) < cl {
-		return "", fmt.Errorf("body length mismatch: Content-Length=%d, received=%d", cl, len(body))
-	}
-
 	if resp.StatusCode < 200 || resp.StatusCode >= 300 {
 		return "", fmt.Errorf("LLM API error (status %d): %s", resp.StatusCode, string(body))
 	}

llm/client_test.go

@@ -3,7 +3,6 @@ package llm
 import (
 	"context"
 	"encoding/json"
-	"fmt"
 	"net/http"
 	"net/http/httptest"
 	"testing"
@@ -296,131 +295,3 @@ func TestWithProvider(t *testing.T) {
 		t.Errorf("expected provider anthropic, got %s", client.provider)
 	}
 }
-
-func TestComplete_RetryOnBodyReadError(t *testing.T) {
-	attempts := 0
-	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		attempts++
-		if attempts == 1 {
-			// First attempt: send headers then close connection abruptly
-			// Simulate by writing partial response and flushing with wrong Content-Length
-			w.Header().Set("Content-Length", "1000")
-			w.WriteHeader(http.StatusOK)
-			w.Write([]byte(`{"choices":[{"message":{"con`))
-			// The test HTTP server will close the connection after handler returns,
-			// but Content-Length mismatch means client gets fewer bytes than expected
-			return
-		}
-		// Second attempt: succeed
-		w.Header().Set("Content-Type", "application/json")
-		json.NewEncoder(w).Encode(ChatResponse{
-			Choices: []struct {
-				Message struct {
-					Content string `json:"content"`
-				} `json:"message"`
-			}{{Message: struct {
-				Content string `json:"content"`
-			}{Content: "success"}}},
-		})
-	}))
-	defer server.Close()
-
-	client := NewClient(server.URL, "key", "model")
-	got, err := client.Complete(context.Background(), []Message{{Role: "user", Content: "Hi"}})
-	if err != nil {
-		t.Fatalf("expected retry to succeed, got error: %v", err)
-	}
-	if got != "success" {
-		t.Errorf("expected %q, got %q", "success", got)
-	}
-	if attempts != 2 {
-		t.Errorf("expected 2 attempts, got %d", attempts)
-	}
-}
-
-func TestComplete_ContentLengthMismatch(t *testing.T) {
-	attempts := 0
-	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		attempts++
-		if attempts == 1 {
-			// Claim Content-Length is larger than actual body
-			w.Header().Set("Content-Length", "500")
-			w.Header().Set("Content-Type", "application/json")
-			w.WriteHeader(http.StatusOK)
-			// Write less than 500 bytes
-			w.Write([]byte(`{"choices":[{"message":{"content":"partial"}}]}`))
-			return
-		}
-		// Second attempt succeeds
-		w.Header().Set("Content-Type", "application/json")
-		json.NewEncoder(w).Encode(ChatResponse{
-			Choices: []struct {
-				Message struct {
-					Content string `json:"content"`
-				} `json:"message"`
-			}{{Message: struct {
-				Content string `json:"content"`
-			}{Content: "complete"}}},
-		})
-	}))
-	defer server.Close()
-
-	client := NewClient(server.URL, "key", "model")
-	got, err := client.Complete(context.Background(), []Message{{Role: "user", Content: "Hi"}})
-	if err != nil {
-		t.Fatalf("expected retry to succeed on content-length mismatch, got: %v", err)
-	}
-	if got != "complete" {
-		t.Errorf("expected %q, got %q", "complete", got)
-	}
-}
-
-func TestComplete_NoRetryOnAPIError(t *testing.T) {
-	attempts := 0
-	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		attempts++
-		w.WriteHeader(http.StatusBadRequest)
-		w.Write([]byte(`{"error":"bad request"}`))
-	}))
-	defer server.Close()
-
-	client := NewClient(server.URL, "key", "model")
-	_, err := client.Complete(context.Background(), []Message{{Role: "user", Content: "Hi"}})
-	if err == nil {
-		t.Fatal("expected error for 400, got nil")
-	}
-	if attempts != 1 {
-		t.Errorf("should not retry on API errors, got %d attempts", attempts)
-	}
-}
-
-func TestIsRetryableError(t *testing.T) {
-	tests := []struct {
-		name     string
-		err      string
-		expected bool
-	}{
-		{"nil formatted", "", false},
-		{"read response error", "read response: unexpected EOF", true},
-		{"body length mismatch", "body length mismatch: Content-Length=1000, received=500", true},
-		{"API error", "LLM API error (status 400): bad request", false},
-		{"parse error", "parse response: unexpected end of JSON input", false},
-		{"request error", "LLM request: connection refused", false},
-	}
-
-	for _, tt := range tests {
-		t.Run(tt.name, func(t *testing.T) {
-			if tt.err == "" {
-				if isRetryableError(nil) {
-					t.Error("nil error should not be retryable")
-				}
-				return
-			}
-			err := fmt.Errorf("%s", tt.err)
-			got := isRetryableError(err)
-			if got != tt.expected {
-				t.Errorf("isRetryableError(%q) = %v, want %v", tt.err, got, tt.expected)
-			}
-		})
-	}
-}

review/formatter.go

@@ -53,48 +53,3 @@ func GiteaEvent(verdict string) string {
 		return "COMMENT"
 	}
 }
-
-// FormatMarkdownWithDisplay formats a ReviewResult with separate display name and sentinel name.
-// displayName is used for the header title, sentinelName is used for the cleanup sentinel.
-// If displayName is empty, sentinelName is used for both.
-func FormatMarkdownWithDisplay(result *ReviewResult, displayName, sentinelName string) string {
-	var sb strings.Builder
-
-	// Use display name for header, or fall back to sentinel name
-	headerName := displayName
-	if headerName == "" {
-		headerName = sentinelName
-	}
-
-	if headerName != "" {
-		title := strings.ToUpper(headerName[:1]) + headerName[1:]
-		sb.WriteString(fmt.Sprintf("# %s Review\n\n", title))
-	}
-
-	sb.WriteString("## Summary\n\n")
-	sb.WriteString(result.Summary)
-	sb.WriteString("\n\n")
-
-	if len(result.Findings) > 0 {
-		sb.WriteString("## Findings\n\n")
-		sb.WriteString("| # | Severity | File | Line | Finding |\n")
-		sb.WriteString("|---|----------|------|------|--------|\n")
-
-		for i, f := range result.Findings {
-			sb.WriteString(fmt.Sprintf("| %d | [%s] | `%s` | %d | %s |\n",
-				i+1, f.Severity, f.File, f.Line, f.Finding))
-		}
-		sb.WriteString("\n")
-	}
-
-	sb.WriteString("## Recommendation\n\n")
-	sb.WriteString(fmt.Sprintf("**%s** — %s\n", result.Verdict, result.Recommendation))
-
-	if sentinelName != "" {
-		sb.WriteString(fmt.Sprintf("\n---\n*Review by %s*\n", headerName))
-		// Hidden sentinel for identifying this bot's reviews during cleanup
-		sb.WriteString(fmt.Sprintf("\n<!-- review-bot:%s -->\n", sentinelName))
-	}
-
-	return sb.String()
-}

review/formatter_test.go

@@ -159,58 +159,3 @@ func TestFormatMarkdown_RoleTitle(t *testing.T) {
 		t.Error("should not contain role title header when reviewer name is empty")
 	}
 }
-
-func TestFormatMarkdownWithDisplay(t *testing.T) {
-	result := &ReviewResult{
-		Verdict:        "APPROVE",
-		Summary:        "Test summary",
-		Findings:       nil,
-		Recommendation: "Test recommendation",
-	}
-
-	t.Run("with display name", func(t *testing.T) {
-		body := FormatMarkdownWithDisplay(result, "Security Specialist", "security")
-
-		// Header should use display name
-		if !strings.Contains(body, "# Security Specialist Review") {
-			t.Error("header should use display name")
-		}
-
-		// Sentinel should use sentinel name
-		if !strings.Contains(body, "<!-- review-bot:security -->") {
-			t.Error("sentinel should use sentinel name")
-		}
-
-		// Footer "Review by" should use display name
-		if !strings.Contains(body, "*Review by Security Specialist*") {
-			t.Error("footer should use display name")
-		}
-	})
-
-	t.Run("without display name", func(t *testing.T) {
-		body := FormatMarkdownWithDisplay(result, "", "reviewer")
-
-		// Should fall back to sentinel name for header
-		if !strings.Contains(body, "# Reviewer Review") {
-			t.Error("header should fall back to sentinel name")
-		}
-
-		if !strings.Contains(body, "<!-- review-bot:reviewer -->") {
-			t.Error("sentinel should use sentinel name")
-		}
-	})
-
-	t.Run("empty both names", func(t *testing.T) {
-		body := FormatMarkdownWithDisplay(result, "", "")
-
-		// Should not have header
-		if strings.Contains(body, "# ") && strings.Contains(body, " Review") {
-			t.Error("should not have header when both names empty")
-		}
-
-		// Should not have sentinel
-		if strings.Contains(body, "<!-- review-bot:") {
-			t.Error("should not have sentinel when sentinel name empty")
-		}
-	})
-}

review/parser.go

@@ -33,14 +33,7 @@ func ParseResponse(response string) (*ReviewResult, error) {
 		// Try to repair before giving up.
 		repaired := repairJSON(cleaned)
 		if err2 := json.Unmarshal([]byte(repaired), &result); err2 != nil {
-			// Include diagnostic info: lengths help identify truncation
+			return nil, fmt.Errorf("parse LLM response as JSON: %w\nRaw response: %s", err, response)
-			rawLen := len(response)
-			cleanedLen := len(cleaned)
-			preview := cleaned
-			if len(preview) > 200 {
-				preview = preview[:100] + "..." + preview[len(preview)-100:]
-			}
-			return nil, fmt.Errorf("parse LLM response as JSON: %w\nRaw length: %d, cleaned length: %d\nCleaned preview: %s", err, rawLen, cleanedLen, preview)
 		}
 	}
 

review/persona.go

@@ -1,98 +0,0 @@
-package review
-
-import (
-	"embed"
-	"encoding/json"
-	"fmt"
-	"os"
-	"path/filepath"
-	"strings"
-)
-
-//go:embed personas/*.json
-var embeddedPersonas embed.FS
-
-// Persona defines a specialized review role with focused expertise.
-type Persona struct {
-	Name         string   `json:"name"`
-	DisplayName  string   `json:"display_name"`
-	ModelPref    string   `json:"model_preference,omitempty"`
-	Identity     string   `json:"identity"`
-	Focus        []string `json:"focus"`
-	Ignore       []string `json:"ignore"`
-	Severity     Severity `json:"severity"`
-	OutputFormat string   `json:"output_format,omitempty"`
-}
-
-// Severity defines what constitutes each severity level for this persona.
-// These are prompt guidance for the LLM, not output format changes.
-type Severity struct {
-	Major string `json:"major"`
-	Minor string `json:"minor"`
-	Nit   string `json:"nit"`
-}
-
-// LoadPersona loads a persona from a file path.
-func LoadPersona(path string) (*Persona, error) {
-	data, err := os.ReadFile(path)
-	if err != nil {
-		return nil, fmt.Errorf("read persona file %s: %w", path, err)
-	}
-	return parsePersona(data, path)
-}
-
-// LoadBuiltinPersona loads a built-in persona by name.
-// Returns an error if the persona doesn't exist.
-func LoadBuiltinPersona(name string) (*Persona, error) {
-	filename := name + ".json"
-	data, err := embeddedPersonas.ReadFile(filepath.Join("personas", filename))
-	if err != nil {
-		available := ListBuiltinPersonas()
-		return nil, fmt.Errorf("unknown built-in persona %q (available: %s)", name, strings.Join(available, ", "))
-	}
-	return parsePersona(data, "builtin:"+name)
-}
-
-// ListBuiltinPersonas returns the names of all built-in personas.
-func ListBuiltinPersonas() []string {
-	entries, err := embeddedPersonas.ReadDir("personas")
-	if err != nil {
-		return nil
-	}
-	var names []string
-	for _, e := range entries {
-		if e.IsDir() {
-			continue
-		}
-		name := e.Name()
-		if strings.HasSuffix(name, ".json") {
-			names = append(names, strings.TrimSuffix(name, ".json"))
-		}
-	}
-	return names
-}
-
-func parsePersona(data []byte, source string) (*Persona, error) {
-	var p Persona
-	if err := json.Unmarshal(data, &p); err != nil {
-		return nil, fmt.Errorf("parse persona %s: %w", source, err)
-	}
-	if err := validatePersona(&p, source); err != nil {
-		return nil, err
-	}
-	return &p, nil
-}
-
-func validatePersona(p *Persona, source string) error {
-	if p.Name == "" {
-		return fmt.Errorf("persona %s: name is required", source)
-	}
-	if p.Identity == "" {
-		return fmt.Errorf("persona %s: identity is required", source)
-	}
-	// DisplayName defaults to Name if not set
-	if p.DisplayName == "" {
-		p.DisplayName = p.Name
-	}
-	return nil
-}

review/persona_prompt.go

@@ -1,118 +0,0 @@
-package review
-
-import (
-	"fmt"
-	"strings"
-)
-
-// BuildPersonaSystemPrompt constructs a system prompt from a persona definition.
-// This replaces BuildSystemBase when a persona is provided.
-func BuildPersonaSystemPrompt(p *Persona) string {
-	var sb strings.Builder
-
-	// Identity section
-	sb.WriteString(p.Identity)
-	sb.WriteString("\n\n")
-
-	// Focus section
-	if len(p.Focus) > 0 {
-		sb.WriteString("## Focus Areas\n\n")
-		sb.WriteString("Concentrate your review on:\n")
-		for _, f := range p.Focus {
-			sb.WriteString(fmt.Sprintf("- %s\n", f))
-		}
-		sb.WriteString("\n")
-	}
-
-	// Ignore section
-	if len(p.Ignore) > 0 {
-		sb.WriteString("## Explicitly Out of Scope\n\n")
-		sb.WriteString("Do NOT comment on:\n")
-		for _, i := range p.Ignore {
-			sb.WriteString(fmt.Sprintf("- %s\n", i))
-		}
-		sb.WriteString("\n")
-	}
-
-	// Severity calibration
-	if p.Severity.Major != "" || p.Severity.Minor != "" || p.Severity.Nit != "" {
-		sb.WriteString("## Severity Calibration\n\n")
-		sb.WriteString("Use these severity definitions for YOUR domain:\n")
-		if p.Severity.Major != "" {
-			sb.WriteString(fmt.Sprintf("- **MAJOR**: %s\n", p.Severity.Major))
-		}
-		if p.Severity.Minor != "" {
-			sb.WriteString(fmt.Sprintf("- **MINOR**: %s\n", p.Severity.Minor))
-		}
-		if p.Severity.Nit != "" {
-			sb.WriteString(fmt.Sprintf("- **NIT**: %s\n", p.Severity.Nit))
-		}
-		sb.WriteString("\n")
-	}
-
-	// Output format instructions (same as base, but with persona context)
-	sb.WriteString("## Review Instructions\n\n")
-	sb.WriteString("CONTEXT:\n")
-	sb.WriteString("- You will receive the full content of modified files for reference, followed by the diff showing what changed.\n")
-	sb.WriteString("- The diff shows ONLY what was added/removed. The full file content provides complete context.\n")
-	sb.WriteString("- Focus your review on the CHANGES (the diff), using the full files for context.\n\n")
-	sb.WriteString("Your task:\n")
-	sb.WriteString("1. Review the diff for issues within YOUR focus areas only.\n")
-	sb.WriteString("2. Consider the CI status — if CI has failed, that is an automatic REQUEST_CHANGES regardless of code quality.\n")
-	sb.WriteString("3. Output your review as structured JSON (and ONLY JSON, no markdown fences or other text).\n\n")
-	sb.WriteString("Output format:\n")
-	sb.WriteString("{\n")
-	sb.WriteString("  \"verdict\": \"APPROVE\" or \"REQUEST_CHANGES\",\n")
-	sb.WriteString("  \"summary\": \"Brief overall assessment (1-3 sentences)\",\n")
-	sb.WriteString("  \"findings\": [\n")
-	sb.WriteString("    {\n")
-	sb.WriteString("      \"severity\": \"MAJOR\" or \"MINOR\" or \"NIT\",\n")
-	sb.WriteString("      \"file\": \"path/to/file\",\n")
-	sb.WriteString("      \"line\": <line number from the diff>,\n")
-	sb.WriteString("      \"finding\": \"Description of the issue\"\n")
-	sb.WriteString("    }\n")
-	sb.WriteString("  ],\n")
-	sb.WriteString("  \"recommendation\": \"Full recommendation text explaining your verdict\"\n")
-	sb.WriteString("}\n\n")
-	sb.WriteString("Rules:\n")
-	sb.WriteString("- If there are any MAJOR findings → verdict must be REQUEST_CHANGES\n")
-	sb.WriteString("- If there are no MAJOR findings → verdict should be APPROVE\n")
-	sb.WriteString("- If CI has failed → verdict must be REQUEST_CHANGES with a finding noting the CI failure\n")
-	sb.WriteString("- Only report findings within your focus areas. Ignore everything else.\n")
-	sb.WriteString("- Line numbers should reference the new file line numbers from the diff headers.\n")
-	sb.WriteString("- If the diff has no changes relevant to your focus areas, APPROVE with no findings.\n")
-
-	// Custom output format if provided
-	if p.OutputFormat != "" {
-		sb.WriteString("\n\n## Additional Output Guidelines\n\n")
-		sb.WriteString(p.OutputFormat)
-	}
-
-	return sb.String()
-}
-
-// BuildSystemPromptWithPersona constructs the full system prompt, using either
-// a persona or the default generic prompt. This is a convenience wrapper that
-// combines BuildPersonaSystemPrompt (or BuildSystemBase) with patterns and conventions.
-// It is exported for use by callers who want one-shot prompt assembly.
-func BuildSystemPromptWithPersona(persona *Persona, conventions, patterns string) string {
-	var base string
-	if persona != nil {
-		base = BuildPersonaSystemPrompt(persona)
-	} else {
-		base = BuildSystemBase()
-	}
-
-	var sb strings.Builder
-	sb.WriteString(base)
-
-	if patterns != "" {
-		sb.WriteString(fmt.Sprintf("\n\n## Language Patterns & Idioms\n\nUse the following patterns as review criteria. Code that violates these established patterns is a finding:\n\n%s\n", patterns))
-	}
-
-	if conventions != "" {
-		sb.WriteString(fmt.Sprintf("\n\n## Repository Conventions\n\nThe repository has the following coding conventions that must be respected:\n\n%s\n", conventions))
-	}
-
-	return sb.String()
-}

review/persona_prompt_test.go

@@ -1,157 +0,0 @@
-package review
-
-import (
-	"strings"
-	"testing"
-)
-
-func TestBuildPersonaSystemPrompt(t *testing.T) {
-	p := &Persona{
-		Name:        "security",
-		DisplayName: "Security Specialist",
-		Identity:    "You are a security specialist.",
-		Focus:       []string{"injection attacks", "auth bypass"},
-		Ignore:      []string{"code style", "performance"},
-		Severity: Severity{
-			Major: "exploitable vulnerabilities",
-			Minor: "defense in depth",
-			Nit:   "theoretical risks",
-		},
-	}
-
-	prompt := BuildPersonaSystemPrompt(p)
-
-	// Check identity is included
-	if !strings.Contains(prompt, "You are a security specialist.") {
-		t.Error("prompt should contain identity")
-	}
-
-	// Check focus areas
-	if !strings.Contains(prompt, "Focus Areas") {
-		t.Error("prompt should contain Focus Areas section")
-	}
-	if !strings.Contains(prompt, "injection attacks") {
-		t.Error("prompt should contain focus item")
-	}
-
-	// Check ignore section
-	if !strings.Contains(prompt, "Out of Scope") {
-		t.Error("prompt should contain Out of Scope section")
-	}
-	if !strings.Contains(prompt, "code style") {
-		t.Error("prompt should contain ignore item")
-	}
-
-	// Check severity calibration
-	if !strings.Contains(prompt, "Severity Calibration") {
-		t.Error("prompt should contain Severity Calibration section")
-	}
-	if !strings.Contains(prompt, "exploitable vulnerabilities") {
-		t.Error("prompt should contain major severity definition")
-	}
-
-	// Check JSON output format is included
-	if !strings.Contains(prompt, `"verdict"`) {
-		t.Error("prompt should contain JSON output format")
-	}
-	if !strings.Contains(prompt, "APPROVE") {
-		t.Error("prompt should mention APPROVE verdict")
-	}
-}
-
-func TestBuildPersonaSystemPromptMinimal(t *testing.T) {
-	// Minimal persona with only required fields
-	p := &Persona{
-		Name:     "minimal",
-		Identity: "You are a minimal reviewer.",
-	}
-
-	prompt := BuildPersonaSystemPrompt(p)
-
-	// Should still work without optional fields
-	if !strings.Contains(prompt, "You are a minimal reviewer.") {
-		t.Error("prompt should contain identity")
-	}
-
-	// Should not have empty sections
-	if strings.Contains(prompt, "Focus Areas") && !strings.Contains(prompt, "Concentrate your review on:") {
-		t.Error("should not have Focus Areas header without content")
-	}
-}
-
-func TestBuildSystemPromptWithPersona(t *testing.T) {
-	t.Run("with persona", func(t *testing.T) {
-		p := &Persona{
-			Name:     "test",
-			Identity: "Test persona identity.",
-			Focus:    []string{"testing"},
-		}
-
-		prompt := BuildSystemPromptWithPersona(p, "test conventions", "test patterns")
-
-		if !strings.Contains(prompt, "Test persona identity.") {
-			t.Error("should contain persona identity")
-		}
-		if !strings.Contains(prompt, "test conventions") {
-			t.Error("should contain conventions")
-		}
-		if !strings.Contains(prompt, "test patterns") {
-			t.Error("should contain patterns")
-		}
-	})
-
-	t.Run("without persona", func(t *testing.T) {
-		prompt := BuildSystemPromptWithPersona(nil, "test conventions", "test patterns")
-
-		// Should use default system base
-		if !strings.Contains(prompt, "expert code reviewer") {
-			t.Error("should contain default system base when no persona")
-		}
-		if !strings.Contains(prompt, "test conventions") {
-			t.Error("should contain conventions")
-		}
-	})
-
-	t.Run("empty conventions and patterns", func(t *testing.T) {
-		p := &Persona{
-			Name:     "test",
-			Identity: "Test identity.",
-		}
-
-		prompt := BuildSystemPromptWithPersona(p, "", "")
-
-		if strings.Contains(prompt, "Language Patterns") {
-			t.Error("should not contain patterns section when empty")
-		}
-		if strings.Contains(prompt, "Repository Conventions") {
-			t.Error("should not contain conventions section when empty")
-		}
-	})
-}
-
-func TestPersonaPromptContainsOutputRules(t *testing.T) {
-	p := &Persona{
-		Name:     "test",
-		Identity: "Test.",
-	}
-
-	prompt := BuildPersonaSystemPrompt(p)
-
-	// Must contain the critical output rules
-	requiredStrings := []string{
-		"APPROVE",
-		"REQUEST_CHANGES",
-		"MAJOR",
-		"MINOR",
-		"NIT",
-		"verdict",
-		"findings",
-		"CI",
-	}
-
-	for _, s := range requiredStrings {
-		if !strings.Contains(prompt, s) {
-			t.Errorf("prompt should contain %q", s)
-		}
-	}
-}

review/persona_test.go

@@ -1,211 +0,0 @@
-package review
-
-import (
-	"os"
-	"path/filepath"
-	"testing"
-)
-
-func TestLoadBuiltinPersona(t *testing.T) {
-	tests := []struct {
-		name        string
-		personaName string
-		wantErr     bool
-		wantDisplay string
-	}{
-		{
-			name:        "security persona",
-			personaName: "security",
-			wantErr:     false,
-			wantDisplay: "Security Specialist",
-		},
-		{
-			name:        "architect persona",
-			personaName: "architect",
-			wantErr:     false,
-			wantDisplay: "Architecture Reviewer",
-		},
-		{
-			name:        "docs persona",
-			personaName: "docs",
-			wantErr:     false,
-			wantDisplay: "Documentation Reviewer",
-		},
-		{
-			name:        "unknown persona",
-			personaName: "nonexistent",
-			wantErr:     true,
-		},
-	}
-
-	for _, tt := range tests {
-		t.Run(tt.name, func(t *testing.T) {
-			p, err := LoadBuiltinPersona(tt.personaName)
-			if tt.wantErr {
-				if err == nil {
-					t.Error("expected error, got nil")
-				}
-				return
-			}
-			if err != nil {
-				t.Fatalf("unexpected error: %v", err)
-			}
-			if p.Name != tt.personaName {
-				t.Errorf("Name = %q, want %q", p.Name, tt.personaName)
-			}
-			if p.DisplayName != tt.wantDisplay {
-				t.Errorf("DisplayName = %q, want %q", p.DisplayName, tt.wantDisplay)
-			}
-			if p.Identity == "" {
-				t.Error("Identity should not be empty")
-			}
-			if len(p.Focus) == 0 {
-				t.Error("Focus should not be empty")
-			}
-		})
-	}
-}
-
-func TestListBuiltinPersonas(t *testing.T) {
-	names := ListBuiltinPersonas()
-	if len(names) == 0 {
-		t.Fatal("expected at least one built-in persona")
-	}
-
-	// Check for expected personas
-	expected := map[string]bool{"security": false, "architect": false, "docs": false}
-	for _, name := range names {
-		if _, ok := expected[name]; ok {
-			expected[name] = true
-		}
-	}
-	for name, found := range expected {
-		if !found {
-			t.Errorf("expected built-in persona %q not found", name)
-		}
-	}
-}
-
-func TestLoadPersonaFromFile(t *testing.T) {
-	// Create a temp persona file
-	dir := t.TempDir()
-	path := filepath.Join(dir, "test.json")
-
-	content := `{
-		"name": "test",
-		"display_name": "Test Persona",
-		"identity": "You are a test persona.",
-		"focus": ["testing"],
-		"ignore": ["nothing"],
-		"severity": {
-			"major": "Big problems",
-			"minor": "Small problems",
-			"nit": "Tiny problems"
-		}
-	}`
-
-	if err := os.WriteFile(path, []byte(content), 0644); err != nil {
-		t.Fatalf("failed to write test file: %v", err)
-	}
-
-	p, err := LoadPersona(path)
-	if err != nil {
-		t.Fatalf("LoadPersona failed: %v", err)
-	}
-
-	if p.Name != "test" {
-		t.Errorf("Name = %q, want %q", p.Name, "test")
-	}
-	if p.DisplayName != "Test Persona" {
-		t.Errorf("DisplayName = %q, want %q", p.DisplayName, "Test Persona")
-	}
-}
-
-func TestLoadPersonaValidation(t *testing.T) {
-	tests := []struct {
-		name    string
-		json    string
-		wantErr string
-	}{
-		{
-			name:    "missing name",
-			json:    `{"identity": "test"}`,
-			wantErr: "name is required",
-		},
-		{
-			name:    "missing identity",
-			json:    `{"name": "test"}`,
-			wantErr: "identity is required",
-		},
-		{
-			name: "display_name defaults to name",
-			json: `{"name": "test", "identity": "test identity"}`,
-			// No error expected - should succeed
-		},
-	}
-
-	for _, tt := range tests {
-		t.Run(tt.name, func(t *testing.T) {
-			dir := t.TempDir()
-			path := filepath.Join(dir, "test.json")
-			if err := os.WriteFile(path, []byte(tt.json), 0644); err != nil {
-				t.Fatalf("failed to write test file: %v", err)
-			}
-
-			p, err := LoadPersona(path)
-			if tt.wantErr != "" {
-				if err == nil {
-					t.Errorf("expected error containing %q, got nil", tt.wantErr)
-					return
-				}
-				if !contains(err.Error(), tt.wantErr) {
-					t.Errorf("error = %q, want containing %q", err.Error(), tt.wantErr)
-				}
-				return
-			}
-			if err != nil {
-				t.Fatalf("unexpected error: %v", err)
-			}
-			// Check display_name defaulting
-			if p.DisplayName == "" {
-				t.Error("DisplayName should default to Name")
-			}
-			if p.DisplayName != p.Name {
-				t.Errorf("DisplayName should default to Name, got %q", p.DisplayName)
-			}
-		})
-	}
-}
-
-func TestLoadPersonaFileNotFound(t *testing.T) {
-	_, err := LoadPersona("/nonexistent/path/persona.json")
-	if err == nil {
-		t.Error("expected error for nonexistent file")
-	}
-}
-
-func TestLoadPersonaInvalidJSON(t *testing.T) {
-	dir := t.TempDir()
-	path := filepath.Join(dir, "invalid.json")
-	if err := os.WriteFile(path, []byte("not json"), 0644); err != nil {
-		t.Fatalf("failed to write test file: %v", err)
-	}
-
-	_, err := LoadPersona(path)
-	if err == nil {
-		t.Error("expected error for invalid JSON")
-	}
-}
-
-func contains(s, substr string) bool {
-	return len(s) >= len(substr) && (s == substr || len(s) > 0 && containsHelper(s, substr))
-}
-
-func containsHelper(s, substr string) bool {
-	for i := 0; i <= len(s)-len(substr); i++ {
-		if s[i:i+len(substr)] == substr {
-			return true
-		}
-	}
-	return false
-}

review/personas/architect.json

@@ -1,25 +0,0 @@
-{
-  "name": "architect",
-  "display_name": "Architecture Reviewer",
-  "identity": "You are an architecture reviewer focused on design patterns, code organization, and maintainability.\n\nYour expertise:\n- Design patterns and their appropriate application\n- Code organization and module boundaries\n- API design and contracts\n- Error handling patterns\n- Concurrency patterns and safety\n- Testing patterns and testability",
-  "focus": [
-    "Design pattern violations or misapplications",
-    "Module boundary violations and improper coupling",
-    "API contract clarity and consistency",
-    "Error handling completeness and patterns",
-    "Concurrency safety and patterns",
-    "Testability and dependency injection",
-    "Separation of concerns"
-  ],
-  "ignore": [
-    "Security vulnerabilities (handled by security persona)",
-    "Performance micro-optimizations",
-    "Minor style preferences",
-    "Documentation formatting"
-  ],
-  "severity": {
-    "major": "Design issues that will cause maintenance burden or bugs: tight coupling, missing abstractions, broken contracts",
-    "minor": "Suboptimal patterns that could be improved: redundant code, unclear boundaries",
-    "nit": "Style suggestions that improve consistency but don't affect correctness"
-  }
-}

review/personas/docs.json

@@ -1,24 +0,0 @@
-{
-  "name": "docs",
-  "display_name": "Documentation Reviewer",
-  "identity": "You are a documentation reviewer focused on API clarity, code comments, and user-facing documentation.\n\nYour expertise:\n- API documentation completeness\n- Code comment quality and accuracy\n- README and user guide clarity\n- Example code correctness\n- Error message helpfulness",
-  "focus": [
-    "Missing or outdated API documentation",
-    "Misleading or incorrect code comments",
-    "Unclear error messages",
-    "Missing or incorrect examples",
-    "README accuracy and completeness",
-    "Public API ergonomics and naming"
-  ],
-  "ignore": [
-    "Implementation details (unless they affect the public API)",
-    "Performance",
-    "Security (handled by security persona)",
-    "Internal code organization"
-  ],
-  "severity": {
-    "major": "Misleading documentation that will cause users to make mistakes",
-    "minor": "Missing documentation for public APIs",
-    "nit": "Minor wording improvements or formatting"
-  }
-}

review/personas/security.json

@@ -1,26 +0,0 @@
-{
-  "name": "security",
-  "display_name": "Security Specialist",
-  "identity": "You are a security specialist reviewing code for vulnerabilities.\n\nYour expertise:\n- OWASP Top 10 vulnerabilities\n- Injection attacks (SQL, command, path traversal, template)\n- Authentication and authorization patterns\n- Secrets management and exposure risks\n- Race conditions with security implications\n- Event sourcing attack vectors (replay attacks, event injection)",
-  "focus": [
-    "Injection attacks (SQL, command, path traversal, template injection)",
-    "Authentication and authorization gaps or bypasses",
-    "Secrets exposure (hardcoded credentials, tokens in logs, config leaks)",
-    "Input validation failures (unsanitized input, unsafe deserialization)",
-    "Race conditions that could be exploited",
-    "Cryptographic weaknesses (weak algorithms, improper key handling)",
-    "Information disclosure through error messages or logs"
-  ],
-  "ignore": [
-    "Code style and naming conventions",
-    "Performance optimizations (unless security-related)",
-    "Documentation quality",
-    "General code quality or readability",
-    "Test coverage"
-  ],
-  "severity": {
-    "major": "Exploitable vulnerabilities: auth bypass, injection, data exfiltration, privilege escalation, RCE",
-    "minor": "Defense-in-depth issues: missing rate limiting, verbose errors, weak input validation",
-    "nit": "Theoretical risks with low exploitability or impact"
-  }
-}