t1385.2: Signal bot integration subagent doc

[marcusquinn]

Summary

• Replace the stub .agents/services/communications/signal.md (608 lines from PR t1385: Add 11 chat platform integration agents with privacy/security assessments #2771) with the comprehensive version (1016 lines) covering full signal-cli integration
• Rebased onto main after resolving conflicts with PR t1385: Add 11 chat platform integration agents with privacy/security assessments #2771 (bulk chat platform integration)

Coverage

• Installation: JVM, GraalVM native binary, Docker, package managers, build from source
• Registration: SMS/voice verification + CAPTCHA, QR code linking to existing account, PIN protection
• Daemon mode: JSON-RPC 2.0 over HTTP (:8080), TCP (:7583), Unix socket, stdin/stdout, D-Bus — with systemd service example
• JSON-RPC API: Full method reference (messaging, groups, account), request/response format, SSE events, curl examples
• Messaging features: DMs, groups, attachments, reactions, typing indicators, read receipts, mentions, quotes, stickers, text styles, polls, edit/delete, link previews, view-once
• Group management: Create, update, admin controls, permissions, group links, ban/unban
• Access control: Recipient identifiers (E.164, ACI UUID, PNI, username), application-level allowlist pattern, blocking, trust management
• Privacy/security assessment: Signal Protocol details (Double Ratchet, X3DH, Curve25519, AES-256-CBC), sealed sender, metadata analysis, comparison table with SimpleX/Matrix/Telegram, bot security model
• aidevops integration: Runner dispatch pattern, minimal shell bot example, planned components
• Matterbridge bridging: Two integration options (signal-cli-rest-api adapter, custom JSON-RPC bridge), privacy warning
• Limitations: Phone number requirement, no multi-device as primary, version expiry, rate limiting, no voice/video calls, exit codes

Supersedes #2767 (closed due to GitHub cache issue after rebase force-push).

Closes #2749

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📥 Commits

Reviewing files that changed from the base of the PR and between 7e385b9 and e2dbf5e.

📒 Files selected for processing (1)

• .agents/services/communications/signal.md

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🔍 Code Quality Report

�[0;35m[MONITOR]�[0m Code Review Monitoring Report

�[0;34m[INFO]�[0m Latest Quality Status:
SonarCloud: 0 bugs, 0 vulnerabilities, 113 code smells

�[0;34m[INFO]�[0m Recent monitoring activity:
Tue Mar 3 05:09:25 UTC 2026: Code review monitoring started
Tue Mar 3 05:09:25 UTC 2026: SonarCloud - Bugs: 0, Vulnerabilities: 0, Code Smells: 113

📈 Current Quality Metrics

• BUGS: 0
• CODE SMELLS: 113
• VULNERABILITIES: 0

Generated on: Tue Mar 3 05:09:28 UTC 2026

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Generated by AI DevOps Framework Code Review Monitoring

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Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud