feat(mentions): support @mentioning issues + server-side auto-expansion (#242)
* feat(mentions): support @mentioning issues in comments - Extend MentionItem type to include "issue" alongside "member"/"agent" - Add issue search (by identifier and title) to mention suggestion dropdown - Render issue mentions with CircleDot icon in autocomplete popup - Issue mentions serialize as [MUL-117 Title](mention://issue/id) (no @ prefix) - Markdown renderer shows issue mentions as clickable links to /issues/:id - Backend mentionRe regex updated to match issue mention type * feat(mentions): auto-expand issue identifiers and add mention format to agent instructions 1. Path A — CLAUDE.md template (runtime_config.go): Add a "## Mentions" section teaching agents the mention serialization format for issues, members, and agents. All agents automatically receive this via the auto-generated CLAUDE.md. 2. Approach 2 — Server-side auto-conversion (internal/mention/): New ExpandIssueIdentifiers() utility that scans comment content for bare issue identifiers (e.g. MUL-117) and replaces them with [MUL-117](mention://issue/<uuid>) mention links. Skips code blocks, inline code, and existing markdown links. Integrated into both: - handler.CreateComment (HTTP API path) - service.createAgentComment (agent task output path)
This commit is contained in:
Bohan Jiang
GitHub
parent
cd1b1155c1
commit
f353e8db59
8 changed files with 350 additions and 15 deletions
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@ -14,10 +14,11 @@ import (
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// mention represents a parsed @mention from markdown content (local alias).
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type mention struct {
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Type string // "member", "agent", or "all"
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ID string // user_id, agent_id, or "all"
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Type string // "member", "agent", "issue", or "all"
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ID string // user_id, agent_id, issue_id, or "all"
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}
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// statusLabels maps DB status values to human-readable labels for notifications.
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var statusLabels = map[string]string{
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"backlog": "Backlog",
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@ -126,6 +126,13 @@ func buildMetaSkillContent(provider string, ctx TaskContextForEnv) string {
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b.WriteString("\n")
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}
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b.WriteString("## Mentions\n\n")
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b.WriteString("When referencing issues or people in comments, use the mention format so they render as interactive links:\n\n")
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b.WriteString("- **Issue**: `[MUL-123](mention://issue/<issue-id>)` — renders as a clickable link to the issue\n")
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b.WriteString("- **Member**: `[@Name](mention://member/<user-id>)` — renders as a styled mention and sends a notification\n")
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b.WriteString("- **Agent**: `[@Name](mention://agent/<agent-id>)` — renders as a styled mention\n\n")
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b.WriteString("Use `multica issue list --output json` to look up issue IDs, and `multica workspace members --output json` for member IDs.\n\n")
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b.WriteString("## Output\n\n")
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b.WriteString("Keep comments concise and natural — state the outcome, not the process.\n")
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b.WriteString("Good: \"Fixed the login redirect. PR: https://...\"\n")
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@ -9,6 +9,7 @@ import (
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"github.com/go-chi/chi/v5"
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"github.com/jackc/pgx/v5/pgtype"
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"github.com/multica-ai/multica/server/internal/logger"
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"github.com/multica-ai/multica/server/internal/mention"
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"github.com/multica-ai/multica/server/internal/util"
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db "github.com/multica-ai/multica/server/pkg/db/generated"
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"github.com/multica-ai/multica/server/pkg/protocol"
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@ -130,6 +131,9 @@ func (h *Handler) CreateComment(w http.ResponseWriter, r *http.Request) {
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// Determine author identity: agent (via X-Agent-ID header) or member.
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authorType, authorID := h.resolveActor(r, userID, uuidToString(issue.WorkspaceID))
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// Expand bare issue identifiers (e.g. MUL-117) into mention links.
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req.Content = mention.ExpandIssueIdentifiers(r.Context(), h.Queries, issue.WorkspaceID, req.Content)
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comment, err := h.Queries.CreateComment(r.Context(), db.CreateCommentParams{
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IssueID: issue.ID,
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WorkspaceID: issue.WorkspaceID,
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196
server/internal/mention/expand.go
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196
server/internal/mention/expand.go
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@ -0,0 +1,196 @@
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// Package mention provides utilities for expanding issue identifier references
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// (e.g. MUL-117) into clickable mention links in markdown content.
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package mention
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import (
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"context"
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"fmt"
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"regexp"
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"strconv"
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"strings"
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"github.com/jackc/pgx/v5/pgtype"
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db "github.com/multica-ai/multica/server/pkg/db/generated"
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)
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// IssueResolver looks up an issue by workspace and number.
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// Implemented by db.Queries.
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type IssueResolver interface {
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GetIssueByNumber(ctx context.Context, arg db.GetIssueByNumberParams) (db.Issue, error)
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}
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// PrefixResolver looks up a workspace to get its issue prefix.
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type PrefixResolver interface {
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GetWorkspace(ctx context.Context, id pgtype.UUID) (db.Workspace, error)
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}
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// Resolver combines both interfaces needed for mention expansion.
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type Resolver interface {
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IssueResolver
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PrefixResolver
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}
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// ExpandIssueIdentifiers scans markdown content for bare issue identifier
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// patterns (e.g. MUL-117) and replaces them with mention links:
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// [MUL-117](mention://issue/<uuid>)
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//
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// It skips identifiers that are:
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// - Already inside a markdown link: [MUL-117](...)
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// - Inside inline code: `MUL-117`
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// - Inside fenced code blocks: ```...```
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func ExpandIssueIdentifiers(ctx context.Context, resolver Resolver, workspaceID pgtype.UUID, content string) string {
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// Get the workspace prefix.
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ws, err := resolver.GetWorkspace(ctx, workspaceID)
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if err != nil || ws.IssuePrefix == "" {
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return content
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}
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prefix := ws.IssuePrefix
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// Build a regex that matches the workspace prefix followed by a hyphen and number.
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// Use word boundaries to avoid matching inside longer strings.
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// The prefix is escaped in case it contains regex-special characters.
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pattern := regexp.MustCompile(`(?:^|(?:\W))` + `(` + regexp.QuoteMeta(prefix) + `-(\d+))` + `(?:\W|$)`)
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// First, identify regions to skip: fenced code blocks and inline code.
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skipRegions := findSkipRegions(content)
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// Find all matches and process from right to left (to preserve offsets).
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allMatches := pattern.FindAllStringSubmatchIndex(content, -1)
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if len(allMatches) == 0 {
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return content
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}
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// Build a set of replacements (offset → replacement string).
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type replacement struct {
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start, end int
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text string
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}
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var replacements []replacement
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for _, match := range allMatches {
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// match[2:4] is the full identifier (e.g. "MUL-117")
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// match[4:6] is the number part (e.g. "117")
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identStart, identEnd := match[2], match[3]
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numStr := content[match[4]:match[5]]
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// Skip if inside a code region.
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if inSkipRegion(identStart, skipRegions) {
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continue
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}
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// Skip if already inside a markdown link: check if preceded by [
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// or followed by ](...).
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if isInsideMarkdownLink(content, identStart, identEnd) {
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continue
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}
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num, err := strconv.Atoi(numStr)
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if err != nil || num <= 0 {
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continue
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}
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// Look up the issue.
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issue, err := resolver.GetIssueByNumber(ctx, db.GetIssueByNumberParams{
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WorkspaceID: workspaceID,
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Number: int32(num),
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})
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if err != nil {
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continue // Issue doesn't exist — leave as-is.
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}
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identifier := content[identStart:identEnd]
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issueID := uuidToString(issue.ID)
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mentionLink := fmt.Sprintf("[%s](mention://issue/%s)", identifier, issueID)
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replacements = append(replacements, replacement{
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start: identStart,
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end: identEnd,
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text: mentionLink,
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})
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}
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if len(replacements) == 0 {
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return content
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}
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// Apply replacements from right to left to preserve offsets.
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result := content
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for i := len(replacements) - 1; i >= 0; i-- {
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r := replacements[i]
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result = result[:r.start] + r.text + result[r.end:]
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}
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return result
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}
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// skipRegion represents a region of text that should not be modified.
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type skipRegion struct {
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start, end int
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}
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// findSkipRegions identifies fenced code blocks (```) and inline code (`)
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// regions in the content.
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func findSkipRegions(content string) []skipRegion {
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var regions []skipRegion
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// Fenced code blocks: ```...```
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fenceRe := regexp.MustCompile("(?m)^```[^`]*\n[\\s\\S]*?\n```")
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for _, loc := range fenceRe.FindAllStringIndex(content, -1) {
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regions = append(regions, skipRegion{loc[0], loc[1]})
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}
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// Inline code: `...` (but not inside fenced blocks — already handled).
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inlineRe := regexp.MustCompile("`[^`\n]+`")
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for _, loc := range inlineRe.FindAllStringIndex(content, -1) {
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regions = append(regions, skipRegion{loc[0], loc[1]})
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}
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return regions
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}
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// inSkipRegion checks if a position falls within any skip region.
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func inSkipRegion(pos int, regions []skipRegion) bool {
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for _, r := range regions {
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if pos >= r.start && pos < r.end {
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return true
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}
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}
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return false
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}
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// isInsideMarkdownLink checks if the text at [start:end] is already part of
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// a markdown link like [MUL-117](mention://...) or [text](url).
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func isInsideMarkdownLink(content string, start, end int) bool {
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// Check if preceded by '[' (part of link text).
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if start > 0 {
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before := strings.TrimRight(content[:start], " ")
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if len(before) > 0 && before[len(before)-1] == '[' {
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return true
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}
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}
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// Check if followed by '](', indicating it's the link text of a markdown link.
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after := content[end:]
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if strings.HasPrefix(after, "](") {
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return true
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}
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// Check if we're inside the URL part of a link: ...](mention://issue/...).
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// Look backwards for ]( pattern.
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idx := strings.LastIndex(content[:start], "](")
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if idx >= 0 {
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// Check that we haven't passed a closing ) yet.
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between := content[idx:start]
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if !strings.Contains(between, ")") {
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return true
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}
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}
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return false
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}
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func uuidToString(u pgtype.UUID) string {
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if !u.Valid {
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return ""
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}
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b := u.Bytes
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return fmt.Sprintf("%08x-%04x-%04x-%04x-%012x",
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b[0:4], b[4:6], b[6:8], b[8:10], b[10:16])
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}
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119
server/internal/mention/expand_test.go
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119
server/internal/mention/expand_test.go
Normal file
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@ -0,0 +1,119 @@
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package mention
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import (
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"context"
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"fmt"
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"testing"
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"github.com/jackc/pgx/v5/pgtype"
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db "github.com/multica-ai/multica/server/pkg/db/generated"
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)
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// mockResolver implements Resolver for testing.
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type mockResolver struct {
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prefix string
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issues map[int32]db.Issue
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}
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func (m *mockResolver) GetWorkspace(_ context.Context, _ pgtype.UUID) (db.Workspace, error) {
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return db.Workspace{IssuePrefix: m.prefix}, nil
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}
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func (m *mockResolver) GetIssueByNumber(_ context.Context, arg db.GetIssueByNumberParams) (db.Issue, error) {
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if issue, ok := m.issues[arg.Number]; ok {
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return issue, nil
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}
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return db.Issue{}, fmt.Errorf("not found")
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}
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func makeUUID(id string) pgtype.UUID {
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var u pgtype.UUID
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u.Valid = true
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// Simple deterministic UUID from a short string for testing.
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copy(u.Bytes[:], []byte(fmt.Sprintf("%-16s", id)))
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return u
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}
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func TestExpandIssueIdentifiers(t *testing.T) {
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ctx := context.Background()
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wsID := makeUUID("ws1")
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issueID := makeUUID("issue117")
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resolver := &mockResolver{
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prefix: "MUL",
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issues: map[int32]db.Issue{
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117: {ID: issueID, Number: 117},
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},
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}
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tests := []struct {
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name string
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input string
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want string
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}{
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{
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name: "basic replacement",
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input: "See MUL-117 for details",
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want: "See [MUL-117](mention://issue/" + uuidToString(issueID) + ") for details",
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},
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{
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name: "at start of line",
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input: "MUL-117 is important",
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want: "[MUL-117](mention://issue/" + uuidToString(issueID) + ") is important",
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},
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{
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name: "at end of line",
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input: "Check out MUL-117",
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want: "Check out [MUL-117](mention://issue/" + uuidToString(issueID) + ")",
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},
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{
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name: "already a mention link",
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input: "[MUL-117](mention://issue/some-id)",
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want: "[MUL-117](mention://issue/some-id)",
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},
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{
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name: "inside inline code",
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input: "Run `MUL-117` to test",
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want: "Run `MUL-117` to test",
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},
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{
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name: "inside fenced code block",
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input: "```\nMUL-117\n```",
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want: "```\nMUL-117\n```",
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},
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{
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name: "non-existent issue unchanged",
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input: "See MUL-999 for details",
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want: "See MUL-999 for details",
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},
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{
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name: "no match",
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input: "No issues here",
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want: "No issues here",
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},
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{
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name: "already a markdown link text",
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input: "[MUL-117](https://example.com)",
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want: "[MUL-117](https://example.com)",
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},
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{
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name: "multiple references",
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input: "MUL-117 and also MUL-117 again",
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want: "[MUL-117](mention://issue/" + uuidToString(issueID) + ") and also [MUL-117](mention://issue/" + uuidToString(issueID) + ") again",
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},
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{
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name: "with parentheses",
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input: "(MUL-117)",
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want: "([MUL-117](mention://issue/" + uuidToString(issueID) + "))",
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},
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}
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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got := ExpandIssueIdentifiers(ctx, resolver, wsID, tt.input)
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if got != tt.want {
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t.Errorf("ExpandIssueIdentifiers() =\n %q\nwant:\n %q", got, tt.want)
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}
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})
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}
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}
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@ -12,6 +12,7 @@ import (
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"github.com/jackc/pgx/v5"
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"github.com/jackc/pgx/v5/pgtype"
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"github.com/multica-ai/multica/server/internal/events"
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"github.com/multica-ai/multica/server/internal/mention"
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"github.com/multica-ai/multica/server/internal/realtime"
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"github.com/multica-ai/multica/server/internal/util"
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db "github.com/multica-ai/multica/server/pkg/db/generated"
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@ -454,6 +455,13 @@ func (s *TaskService) createAgentComment(ctx context.Context, issueID, agentID p
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if content == "" {
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return
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}
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// Look up issue to get workspace ID for mention expansion and broadcasting.
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issue, err := s.Queries.GetIssue(ctx, issueID)
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if err != nil {
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return
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}
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// Expand bare issue identifiers (e.g. MUL-117) into mention links.
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content = mention.ExpandIssueIdentifiers(ctx, s.Queries, issue.WorkspaceID, content)
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comment, err := s.Queries.CreateComment(ctx, db.CreateCommentParams{
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IssueID: issueID,
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AuthorType: "agent",
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@ -465,11 +473,6 @@ func (s *TaskService) createAgentComment(ctx context.Context, issueID, agentID p
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if err != nil {
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return
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}
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// Look up issue to get workspace ID for broadcasting
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issue, err := s.Queries.GetIssue(ctx, issueID)
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if err != nil {
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return
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}
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s.Bus.Publish(events.Event{
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Type: protocol.EventCommentCreated,
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WorkspaceID: util.UUIDToString(issue.WorkspaceID),
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|
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@ -4,12 +4,13 @@ import "regexp"
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// Mention represents a parsed @mention from markdown content.
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type Mention struct {
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Type string // "member", "agent", or "all"
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ID string // user_id, agent_id, or "all"
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Type string // "member", "agent", "issue", or "all"
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ID string // user_id, agent_id, issue_id, or "all"
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}
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// MentionRe matches [@Label](mention://type/id) in markdown.
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var MentionRe = regexp.MustCompile(`\[@[^\]]*\]\(mention://(member|agent|all)/([0-9a-fA-F-]+|all)\)`)
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// MentionRe matches [@Label](mention://type/id) or [Label](mention://issue/id) in markdown.
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// The @ prefix is optional to support issue mentions which use [MUL-123](mention://issue/...).
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var MentionRe = regexp.MustCompile(`\[@?[^\]]*\]\(mention://(member|agent|issue|all)/([0-9a-fA-F-]+|all)\)`)
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// IsMentionAll returns true if the mention is an @all mention.
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func (m Mention) IsMentionAll() bool {
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|
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|
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Loading…
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Add a link
Reference in a new issue