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🔄 Complete Message Flow Diagram
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<h1 id="messenger-module-complete-specification">🎉 MESSENGER MODULE — COMPLETE SPECIFICATION<a class="headerlink" href="#messenger-module-complete-specification" title="Permanent link">&para;</a></h1>
<p><strong>Matrix-aware Full-Stack Implementation with Agent Integration</strong></p>
<p><strong>Version:</strong> 1.0.0<br />
<strong>Date:</strong> 2025-11-24<br />
<strong>Status:</strong> ✅ Phase 1 Complete | 📋 Phase 2 Spec Ready</p>
<hr />
<h2 id="document-overview">📚 Document Overview<a class="headerlink" href="#document-overview" title="Permanent link">&para;</a></h2>
<p>This is the <strong>master specification</strong> for DAARION Messenger. All technical details, architecture, and implementation guides are consolidated here.</p>
<h3 id="related-documents">Related Documents<a class="headerlink" href="#related-documents" title="Permanent link">&para;</a></h3>
<ol>
<li><strong>MESSAGING_ARCHITECTURE.md</strong> — Full technical specification (this is the main doc)</li>
<li><strong>messaging-erd.dbml</strong> — Database ERD (dbdiagram.io format)</li>
<li><strong>MESSENGER_MODULE_COMPLETE.md</strong> — Implementation summary</li>
<li><strong>MESSENGER_TESTING_GUIDE.md</strong> — Testing scenarios</li>
<li><strong>services/messaging-service/README.md</strong> — Service docs</li>
<li><strong>services/matrix-gateway/API_SPEC.md</strong> — API reference</li>
</ol>
<hr />
<h2 id="whats-implemented-phase-1">✅ What's Implemented (Phase 1)<a class="headerlink" href="#whats-implemented-phase-1" title="Permanent link">&para;</a></h2>
<h3 id="backend">Backend<a class="headerlink" href="#backend" title="Permanent link">&para;</a></h3>
<ul>
<li><strong>Database Schema</strong> — 5 tables (channels, messages, channel_members, etc.)</li>
<li><strong>messaging-service</strong> — FastAPI, 9 endpoints (REST + WebSocket)</li>
<li><strong>matrix-gateway API Spec</strong> — Complete internal API design</li>
<li><strong>Docker Orchestration</strong> — Full stack (Synapse + services)</li>
<li><strong>NATS Integration</strong> — Event schema defined</li>
</ul>
<h3 id="frontend">Frontend<a class="headerlink" href="#frontend" title="Permanent link">&para;</a></h3>
<ul>
<li><strong>MessengerPage</strong> — Full UI with sidebar + chat</li>
<li><strong>Real-time WebSocket</strong> — Live message updates</li>
<li><strong>TypeScript Types</strong> — Complete type definitions</li>
<li><strong>API Clients</strong> — 4 clients (channels, messages, etc.)</li>
<li><strong>React Hooks</strong> — 3 hooks (useChannels, useMessages, useMessagingWebSocket)</li>
</ul>
<h3 id="infrastructure">Infrastructure<a class="headerlink" href="#infrastructure" title="Permanent link">&para;</a></h3>
<ul>
<li><strong>docker-compose.messenger.yml</strong> — 6 services</li>
<li><strong>Nginx Gateway</strong> — WebSocket + API proxy</li>
<li><strong>Health Checks</strong> — All services</li>
<li><strong>Migrations</strong> — SQL schema ready</li>
</ul>
<h3 id="documentation">Documentation<a class="headerlink" href="#documentation" title="Permanent link">&para;</a></h3>
<ul>
<li><strong>Testing Guide</strong> — 13 test scenarios</li>
<li><strong>Implementation Summary</strong> — Complete deliverables</li>
<li><strong>Architecture Spec</strong> — This document</li>
<li><strong>ERD Diagrams</strong> — Mermaid + dbdiagram.io</li>
</ul>
<hr />
<h2 id="phase-2-specification-agent-integration">📋 Phase 2 Specification (Agent Integration)<a class="headerlink" href="#phase-2-specification-agent-integration" title="Permanent link">&para;</a></h2>
<h3 id="components-to-build">Components to Build<a class="headerlink" href="#components-to-build" title="Permanent link">&para;</a></h3>
<h4 id="1-agent_filter-service">1. agent_filter Service<a class="headerlink" href="#1-agent_filter-service" title="Permanent link">&para;</a></h4>
<p><strong>Location:</strong> <code>services/agent-filter/</code></p>
<p><strong>Purpose:</strong> Security and routing layer for agent messages</p>
<p><strong>Endpoints:</strong>
- <code>POST /internal/filter/message</code> — Filter incoming message
- <code>GET /internal/filter/rules/{microdao_id}</code> — Get rules</p>
<p><strong>Logic:</strong></p>
<div class="codehilite"><pre><span></span><code><span class="k">def</span><span class="w"> </span><span class="nf">filter_message</span><span class="p">(</span><span class="n">event</span><span class="p">:</span> <span class="n">MessageCreatedEvent</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">FilterDecision</span><span class="p">:</span>
<span class="c1"># Check permissions</span>
<span class="k">if</span> <span class="ow">not</span> <span class="n">is_agent_member</span><span class="p">(</span><span class="n">event</span><span class="o">.</span><span class="n">channel_id</span><span class="p">,</span> <span class="s2">&quot;agent:sofia&quot;</span><span class="p">):</span>
<span class="k">return</span> <span class="n">deny</span><span class="p">(</span><span class="s2">&quot;not_member&quot;</span><span class="p">)</span>
<span class="c1"># Check content</span>
<span class="k">if</span> <span class="n">contains_spam</span><span class="p">(</span><span class="n">event</span><span class="o">.</span><span class="n">content</span><span class="p">):</span>
<span class="k">return</span> <span class="n">deny</span><span class="p">(</span><span class="s2">&quot;spam&quot;</span><span class="p">)</span>
<span class="c1"># Check rate limit</span>
<span class="k">if</span> <span class="n">too_frequent</span><span class="p">(</span><span class="n">event</span><span class="o">.</span><span class="n">channel_id</span><span class="p">):</span>
<span class="k">return</span> <span class="n">deny</span><span class="p">(</span><span class="s2">&quot;rate_limit&quot;</span><span class="p">)</span>
<span class="c1"># Select agent</span>
<span class="n">agent</span> <span class="o">=</span> <span class="n">select_best_agent</span><span class="p">(</span><span class="n">event</span><span class="p">)</span>
<span class="k">return</span> <span class="n">allow</span><span class="p">(</span><span class="n">agent</span><span class="o">.</span><span class="n">id</span><span class="p">)</span>
</code></pre></div>
<p><strong>NATS:</strong>
- Subscribe: <code>messaging.message.created</code>
- Publish: <code>agent.filter.decision</code></p>
<hr />
<h4 id="2-dagi-router-extension">2. DAGI Router Extension<a class="headerlink" href="#2-dagi-router-extension" title="Permanent link">&para;</a></h4>
<p><strong>Location:</strong> <code>services/dagi-router/</code></p>
<p><strong>Add routing rules:</strong></p>
<div class="codehilite"><pre><span></span><code><span class="nt">rules</span><span class="p">:</span>
<span class="w"> </span><span class="p p-Indicator">-</span><span class="w"> </span><span class="nt">name</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">messaging.inbound</span>
<span class="w"> </span><span class="nt">trigger</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">agent.filter.decision</span>
<span class="w"> </span><span class="nt">condition</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">decision == &#39;allow&#39;</span>
<span class="w"> </span><span class="nt">action</span><span class="p">:</span>
<span class="w"> </span><span class="nt">type</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">invoke_agent</span>
<span class="w"> </span><span class="nt">agent_id</span><span class="p">:</span><span class="w"> </span><span class="s">&quot;{{</span><span class="nv"> </span><span class="s">target_agent_id</span><span class="nv"> </span><span class="s">}}&quot;</span>
<span class="w"> </span><span class="nt">entrypoint</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">channel_message</span>
</code></pre></div>
<p><strong>Actions:</strong>
- Parse <code>agent.filter.decision</code> events
- Create <code>AgentInvocation</code>
- Send to Agent Runtime</p>
<hr />
<h4 id="3-agent-runtime-channel-integration">3. Agent Runtime Channel Integration<a class="headerlink" href="#3-agent-runtime-channel-integration" title="Permanent link">&para;</a></h4>
<p><strong>Location:</strong> <code>services/agent-runtime/</code></p>
<p><strong>Add channel context reader:</strong></p>
<div class="codehilite"><pre><span></span><code><span class="k">async</span> <span class="k">def</span><span class="w"> </span><span class="nf">read_channel_context</span><span class="p">(</span><span class="n">channel_id</span><span class="p">:</span> <span class="nb">str</span><span class="p">,</span> <span class="n">limit</span><span class="p">:</span> <span class="nb">int</span> <span class="o">=</span> <span class="mi">50</span><span class="p">):</span>
<span class="c1"># Call messaging-service internal API</span>
<span class="n">messages</span> <span class="o">=</span> <span class="k">await</span> <span class="n">http</span><span class="o">.</span><span class="n">get</span><span class="p">(</span>
<span class="sa">f</span><span class="s2">&quot;/internal/messaging/channels/</span><span class="si">{</span><span class="n">channel_id</span><span class="si">}</span><span class="s2">/messages?limit=</span><span class="si">{</span><span class="n">limit</span><span class="si">}</span><span class="s2">&quot;</span>
<span class="p">)</span>
<span class="k">return</span> <span class="n">messages</span>
<span class="k">async</span> <span class="k">def</span><span class="w"> </span><span class="nf">post_agent_reply</span><span class="p">(</span><span class="n">agent_id</span><span class="p">:</span> <span class="nb">str</span><span class="p">,</span> <span class="n">channel_id</span><span class="p">:</span> <span class="nb">str</span><span class="p">,</span> <span class="n">text</span><span class="p">:</span> <span class="nb">str</span><span class="p">):</span>
<span class="c1"># Call messaging-service internal API</span>
<span class="k">await</span> <span class="n">http</span><span class="o">.</span><span class="n">post</span><span class="p">(</span>
<span class="sa">f</span><span class="s2">&quot;/internal/agents/</span><span class="si">{</span><span class="n">agent_id</span><span class="si">}</span><span class="s2">/post-to-channel&quot;</span><span class="p">,</span>
<span class="n">json</span><span class="o">=</span><span class="p">{</span><span class="s2">&quot;channel_id&quot;</span><span class="p">:</span> <span class="n">channel_id</span><span class="p">,</span> <span class="s2">&quot;text&quot;</span><span class="p">:</span> <span class="n">text</span><span class="p">}</span>
<span class="p">)</span>
</code></pre></div>
<p><strong>Agent Execution Flow:</strong>
1. Receive invocation from DAGI Router
2. Read channel context (last 50 messages)
3. Query Agent Memory (RAG)
4. Build prompt (system + context + memory)
5. Call LLM Proxy
6. Execute tools (if needed)
7. Post reply via messaging-service</p>
<hr />
<h4 id="4-messaging-service-extensions">4. messaging-service Extensions<a class="headerlink" href="#4-messaging-service-extensions" title="Permanent link">&para;</a></h4>
<p><strong>Add internal endpoints:</strong></p>
<p><strong>GET /internal/messaging/channels/{channel_id}/messages</strong></p>
<div class="codehilite"><pre><span></span><code><span class="nd">@app</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">&quot;/internal/messaging/channels/</span><span class="si">{channel_id}</span><span class="s2">/messages&quot;</span><span class="p">)</span>
<span class="k">async</span> <span class="k">def</span><span class="w"> </span><span class="nf">get_channel_messages_internal</span><span class="p">(</span>
<span class="n">channel_id</span><span class="p">:</span> <span class="n">UUID</span><span class="p">,</span>
<span class="n">limit</span><span class="p">:</span> <span class="nb">int</span> <span class="o">=</span> <span class="mi">50</span><span class="p">,</span>
<span class="n">conn</span> <span class="o">=</span> <span class="n">Depends</span><span class="p">(</span><span class="n">get_db</span><span class="p">)</span>
<span class="p">):</span>
<span class="c1"># No auth (internal only)</span>
<span class="n">messages</span> <span class="o">=</span> <span class="k">await</span> <span class="n">conn</span><span class="o">.</span><span class="n">fetch</span><span class="p">(</span>
<span class="s2">&quot;SELECT * FROM messages WHERE channel_id = $1 LIMIT $2&quot;</span><span class="p">,</span>
<span class="n">channel_id</span><span class="p">,</span> <span class="n">limit</span>
<span class="p">)</span>
<span class="k">return</span> <span class="p">[</span><span class="nb">dict</span><span class="p">(</span><span class="n">m</span><span class="p">)</span> <span class="k">for</span> <span class="n">m</span> <span class="ow">in</span> <span class="n">messages</span><span class="p">]</span>
</code></pre></div>
<p><strong>Already implemented:</strong></p>
<div class="codehilite"><pre><span></span><code><span class="nd">@app</span><span class="o">.</span><span class="n">post</span><span class="p">(</span><span class="s2">&quot;/internal/agents/</span><span class="si">{agent_id}</span><span class="s2">/post-to-channel&quot;</span><span class="p">)</span>
<span class="k">async</span> <span class="k">def</span><span class="w"> </span><span class="nf">agent_post_to_channel</span><span class="p">(</span><span class="o">...</span><span class="p">):</span>
<span class="c1"># Implemented in Phase 1 ✅</span>
</code></pre></div>
<hr />
<h4 id="5-nats-event-publishing">5. NATS Event Publishing<a class="headerlink" href="#5-nats-event-publishing" title="Permanent link">&para;</a></h4>
<p><strong>Update messaging-service:</strong></p>
<div class="codehilite"><pre><span></span><code><span class="kn">import</span><span class="w"> </span><span class="nn">nats</span>
<span class="n">nats_client</span> <span class="o">=</span> <span class="k">await</span> <span class="n">nats</span><span class="o">.</span><span class="n">connect</span><span class="p">(</span><span class="n">NATS_URL</span><span class="p">)</span>
<span class="c1"># After indexing message:</span>
<span class="k">await</span> <span class="n">nats_client</span><span class="o">.</span><span class="n">publish</span><span class="p">(</span>
<span class="s2">&quot;messaging.message.created&quot;</span><span class="p">,</span>
<span class="n">json</span><span class="o">.</span><span class="n">dumps</span><span class="p">({</span>
<span class="s2">&quot;channel_id&quot;</span><span class="p">:</span> <span class="nb">str</span><span class="p">(</span><span class="n">channel_id</span><span class="p">),</span>
<span class="s2">&quot;matrix_event_id&quot;</span><span class="p">:</span> <span class="n">matrix_event_id</span><span class="p">,</span>
<span class="s2">&quot;sender_id&quot;</span><span class="p">:</span> <span class="n">sender_id</span><span class="p">,</span>
<span class="s2">&quot;sender_type&quot;</span><span class="p">:</span> <span class="n">sender_type</span><span class="p">,</span>
<span class="s2">&quot;microdao_id&quot;</span><span class="p">:</span> <span class="n">microdao_id</span><span class="p">,</span>
<span class="s2">&quot;created_at&quot;</span><span class="p">:</span> <span class="n">created_at</span><span class="o">.</span><span class="n">isoformat</span><span class="p">()</span>
<span class="p">})</span><span class="o">.</span><span class="n">encode</span><span class="p">()</span>
<span class="p">)</span>
</code></pre></div>
<p><strong>Update matrix-gateway:</strong></p>
<div class="codehilite"><pre><span></span><code><span class="c1"># After receiving Matrix event:</span>
<span class="k">await</span> <span class="n">nats_client</span><span class="o">.</span><span class="n">publish</span><span class="p">(</span>
<span class="s2">&quot;integration.matrix.message&quot;</span><span class="p">,</span>
<span class="n">json</span><span class="o">.</span><span class="n">dumps</span><span class="p">({</span>
<span class="s2">&quot;room_id&quot;</span><span class="p">:</span> <span class="n">room_id</span><span class="p">,</span>
<span class="s2">&quot;event_id&quot;</span><span class="p">:</span> <span class="n">event_id</span><span class="p">,</span>
<span class="s2">&quot;sender_matrix_id&quot;</span><span class="p">:</span> <span class="n">sender</span><span class="p">,</span>
<span class="s2">&quot;type&quot;</span><span class="p">:</span> <span class="n">event_type</span><span class="p">,</span>
<span class="s2">&quot;content&quot;</span><span class="p">:</span> <span class="n">content</span>
<span class="p">})</span><span class="o">.</span><span class="n">encode</span><span class="p">()</span>
<span class="p">)</span>
</code></pre></div>
<hr />
<h2 id="complete-message-flow-diagram">🔄 Complete Message Flow Diagram<a class="headerlink" href="#complete-message-flow-diagram" title="Permanent link">&para;</a></h2>
<div class="codehilite"><pre><span></span><code><span class="n">sequenceDiagram</span>
<span class="w"> </span><span class="n">participant</span><span class="w"> </span><span class="n">User</span>
<span class="w"> </span><span class="n">participant</span><span class="w"> </span><span class="n">Frontend</span>
<span class="w"> </span><span class="n">participant</span><span class="w"> </span><span class="n">messaging</span><span class="o">-</span><span class="kr">service</span>
<span class="w"> </span><span class="n">participant</span><span class="w"> </span><span class="n">matrix</span><span class="o">-</span><span class="n">gateway</span>
<span class="w"> </span><span class="n">participant</span><span class="w"> </span><span class="n">Matrix</span>
<span class="w"> </span><span class="n">participant</span><span class="w"> </span><span class="n">NATS</span>
<span class="w"> </span><span class="n">participant</span><span class="w"> </span><span class="n">agent_filter</span>
<span class="w"> </span><span class="n">participant</span><span class="w"> </span><span class="n">DAGI_Router</span>
<span class="w"> </span><span class="n">participant</span><span class="w"> </span><span class="n">Agent_Runtime</span>
<span class="w"> </span><span class="n">participant</span><span class="w"> </span><span class="n">LLM_Proxy</span>
<span class="w"> </span><span class="n">Note</span><span class="w"> </span><span class="n">over</span><span class="w"> </span><span class="n">User</span><span class="p">,</span><span class="n">LLM_Proxy</span><span class="o">:</span><span class="w"> </span><span class="n">Phase</span><span class="w"> </span><span class="mi">1</span><span class="w"> </span><span class="p">(</span><span class="n">Implemented</span><span class="p">)</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="n">Phase</span><span class="w"> </span><span class="mi">2</span><span class="w"> </span><span class="p">(</span><span class="n">To</span><span class="w"> </span><span class="kr">Build</span><span class="p">)</span>
<span class="w"> </span><span class="n">rect</span><span class="w"> </span><span class="n">rgb</span><span class="p">(</span><span class="mi">200</span><span class="p">,</span><span class="w"> </span><span class="mi">255</span><span class="p">,</span><span class="w"> </span><span class="mi">200</span><span class="p">)</span>
<span class="w"> </span><span class="n">Note</span><span class="w"> </span><span class="kr">right</span><span class="w"> </span><span class="kr">of</span><span class="w"> </span><span class="n">User</span><span class="o">:</span><span class="w"> </span><span class="n">Phase</span><span class="w"> </span><span class="mi">1</span><span class="o">:</span><span class="w"> </span><span class="n">Human</span><span class="w"> </span><span class="n">Message</span>
<span class="w"> </span><span class="n">User</span><span class="o">-&gt;&gt;</span><span class="n">Frontend</span><span class="o">:</span><span class="w"> </span><span class="kr">Type</span><span class="w"> </span><span class="s">&quot;Hello!&quot;</span>
<span class="w"> </span><span class="n">Frontend</span><span class="o">-&gt;&gt;</span><span class="n">messaging</span><span class="o">-</span><span class="kr">service</span><span class="o">:</span><span class="w"> </span><span class="n">POST</span><span class="w"> </span><span class="o">/</span><span class="n">api</span><span class="o">/</span><span class="n">messaging</span><span class="o">/</span><span class="n">channels</span><span class="o">/</span><span class="p">{</span><span class="n">id</span><span class="p">}</span><span class="o">/</span><span class="n">messages</span>
<span class="w"> </span><span class="n">messaging</span><span class="o">-</span><span class="kr">service</span><span class="o">-&gt;&gt;</span><span class="n">matrix</span><span class="o">-</span><span class="n">gateway</span><span class="o">:</span><span class="w"> </span><span class="n">POST</span><span class="w"> </span><span class="o">/</span><span class="n">internal</span><span class="o">/</span><span class="n">matrix</span><span class="o">/</span><span class="n">send</span>
<span class="w"> </span><span class="n">matrix</span><span class="o">-</span><span class="n">gateway</span><span class="o">-&gt;&gt;</span><span class="n">Matrix</span><span class="o">:</span><span class="w"> </span><span class="n">m</span><span class="p">.</span><span class="n">room</span><span class="p">.</span><span class="n">message</span>
<span class="w"> </span><span class="n">Matrix</span><span class="o">--&gt;&gt;</span><span class="n">matrix</span><span class="o">-</span><span class="n">gateway</span><span class="o">:</span><span class="w"> </span><span class="n">event_id</span>
<span class="w"> </span><span class="n">matrix</span><span class="o">-</span><span class="n">gateway</span><span class="o">--&gt;&gt;</span><span class="n">messaging</span><span class="o">-</span><span class="kr">service</span><span class="o">:</span><span class="w"> </span><span class="n">event_id</span>
<span class="w"> </span><span class="n">messaging</span><span class="o">-</span><span class="kr">service</span><span class="o">-&gt;&gt;</span><span class="n">NATS</span><span class="o">:</span><span class="w"> </span><span class="n">Publish</span><span class="w"> </span><span class="n">messaging</span><span class="p">.</span><span class="n">message</span><span class="p">.</span><span class="n">created</span>
<span class="w"> </span><span class="n">messaging</span><span class="o">-</span><span class="kr">service</span><span class="o">--&gt;&gt;</span><span class="n">Frontend</span><span class="o">:</span><span class="w"> </span><span class="mi">201</span><span class="w"> </span><span class="n">Created</span>
<span class="w"> </span><span class="kd">end</span>
<span class="w"> </span><span class="n">rect</span><span class="w"> </span><span class="n">rgb</span><span class="p">(</span><span class="mi">255</span><span class="p">,</span><span class="w"> </span><span class="mi">255</span><span class="p">,</span><span class="w"> </span><span class="mi">200</span><span class="p">)</span>
<span class="w"> </span><span class="n">Note</span><span class="w"> </span><span class="kr">right</span><span class="w"> </span><span class="kr">of</span><span class="w"> </span><span class="n">NATS</span><span class="o">:</span><span class="w"> </span><span class="n">Phase</span><span class="w"> </span><span class="mi">2</span><span class="o">:</span><span class="w"> </span><span class="n">Agent</span><span class="w"> </span><span class="n">Processing</span>
<span class="w"> </span><span class="n">NATS</span><span class="o">-&gt;&gt;</span><span class="n">agent_filter</span><span class="o">:</span><span class="w"> </span><span class="n">messaging</span><span class="p">.</span><span class="n">message</span><span class="p">.</span><span class="n">created</span>
<span class="w"> </span><span class="n">agent_filter</span><span class="o">-&gt;&gt;</span><span class="n">agent_filter</span><span class="o">:</span><span class="w"> </span><span class="n">Check</span><span class="w"> </span><span class="n">rules</span>
<span class="w"> </span><span class="n">agent_filter</span><span class="o">-&gt;&gt;</span><span class="n">NATS</span><span class="o">:</span><span class="w"> </span><span class="n">Publish</span><span class="w"> </span><span class="n">agent</span><span class="p">.</span><span class="n">filter</span><span class="p">.</span><span class="n">decision</span><span class="w"> </span><span class="p">(</span><span class="n">allow</span><span class="p">)</span>
<span class="w"> </span><span class="n">NATS</span><span class="o">-&gt;&gt;</span><span class="n">DAGI_Router</span><span class="o">:</span><span class="w"> </span><span class="n">agent</span><span class="p">.</span><span class="n">filter</span><span class="p">.</span><span class="n">decision</span>
<span class="w"> </span><span class="n">DAGI_Router</span><span class="o">-&gt;&gt;</span><span class="n">Agent_Runtime</span><span class="o">:</span><span class="w"> </span><span class="n">Invoke</span><span class="w"> </span><span class="n">agent</span><span class="o">:</span><span class="n">sofia</span>
<span class="w"> </span><span class="n">Agent_Runtime</span><span class="o">-&gt;&gt;</span><span class="n">messaging</span><span class="o">-</span><span class="kr">service</span><span class="o">:</span><span class="w"> </span><span class="n">GET</span><span class="w"> </span><span class="o">/</span><span class="n">internal</span><span class="o">/</span><span class="p">...</span><span class="o">/</span><span class="n">messages</span>
<span class="w"> </span><span class="n">Agent_Runtime</span><span class="o">-&gt;&gt;</span><span class="n">Agent_Runtime</span><span class="o">:</span><span class="w"> </span><span class="kr">Build</span><span class="w"> </span><span class="n">prompt</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="n">Memory</span>
<span class="w"> </span><span class="n">Agent_Runtime</span><span class="o">-&gt;&gt;</span><span class="n">LLM_Proxy</span><span class="o">:</span><span class="w"> </span><span class="n">Generate</span>
<span class="w"> </span><span class="n">LLM_Proxy</span><span class="o">--&gt;&gt;</span><span class="n">Agent_Runtime</span><span class="o">:</span><span class="w"> </span><span class="n">Response</span>
<span class="w"> </span><span class="n">Agent_Runtime</span><span class="o">-&gt;&gt;</span><span class="n">messaging</span><span class="o">-</span><span class="kr">service</span><span class="o">:</span><span class="w"> </span><span class="n">POST</span><span class="w"> </span><span class="o">/</span><span class="n">internal</span><span class="o">/</span><span class="n">agents</span><span class="o">/</span><span class="p">...</span><span class="o">/</span><span class="n">post</span><span class="o">-</span><span class="n">to</span><span class="o">-</span><span class="n">channel</span>
<span class="w"> </span><span class="kd">end</span>
<span class="w"> </span><span class="n">rect</span><span class="w"> </span><span class="n">rgb</span><span class="p">(</span><span class="mi">200</span><span class="p">,</span><span class="w"> </span><span class="mi">200</span><span class="p">,</span><span class="w"> </span><span class="mi">255</span><span class="p">)</span>
<span class="w"> </span><span class="n">Note</span><span class="w"> </span><span class="kr">right</span><span class="w"> </span><span class="kr">of</span><span class="w"> </span><span class="n">messaging</span><span class="o">-</span><span class="kr">service</span><span class="o">:</span><span class="w"> </span><span class="n">Phase</span><span class="w"> </span><span class="mi">1</span><span class="o">:</span><span class="w"> </span><span class="n">Agent</span><span class="w"> </span><span class="n">Reply</span>
<span class="w"> </span><span class="n">messaging</span><span class="o">-</span><span class="kr">service</span><span class="o">-&gt;&gt;</span><span class="n">matrix</span><span class="o">-</span><span class="n">gateway</span><span class="o">:</span><span class="w"> </span><span class="n">POST</span><span class="w"> </span><span class="o">/</span><span class="n">internal</span><span class="o">/</span><span class="n">matrix</span><span class="o">/</span><span class="n">send</span><span class="w"> </span><span class="p">(</span><span class="n">agent</span><span class="p">)</span>
<span class="w"> </span><span class="n">matrix</span><span class="o">-</span><span class="n">gateway</span><span class="o">-&gt;&gt;</span><span class="n">Matrix</span><span class="o">:</span><span class="w"> </span><span class="n">m</span><span class="p">.</span><span class="n">room</span><span class="p">.</span><span class="n">message</span><span class="w"> </span><span class="p">(</span><span class="n">agent</span><span class="p">)</span>
<span class="w"> </span><span class="n">matrix</span><span class="o">-</span><span class="n">gateway</span><span class="o">-&gt;&gt;</span><span class="n">NATS</span><span class="o">:</span><span class="w"> </span><span class="n">integration</span><span class="p">.</span><span class="n">matrix</span><span class="p">.</span><span class="n">message</span>
<span class="w"> </span><span class="n">messaging</span><span class="o">-</span><span class="kr">service</span><span class="o">-&gt;&gt;</span><span class="n">NATS</span><span class="o">:</span><span class="w"> </span><span class="n">messaging</span><span class="p">.</span><span class="n">message</span><span class="p">.</span><span class="n">created</span>
<span class="w"> </span><span class="n">messaging</span><span class="o">-</span><span class="kr">service</span><span class="o">-&gt;&gt;</span><span class="n">Frontend</span><span class="o">:</span><span class="w"> </span><span class="n">WebSocket</span><span class="o">:</span><span class="w"> </span><span class="n">message</span><span class="p">.</span><span class="n">created</span>
<span class="w"> </span><span class="n">Frontend</span><span class="o">-&gt;&gt;</span><span class="n">User</span><span class="o">:</span><span class="w"> </span><span class="n">Display</span><span class="w"> </span><span class="n">agent</span><span class="w"> </span><span class="n">reply</span>
<span class="w"> </span><span class="kd">end</span>
</code></pre></div>
<hr />
<h2 id="database-erd-visual-reference">📊 Database ERD (Visual Reference)<a class="headerlink" href="#database-erd-visual-reference" title="Permanent link">&para;</a></h2>
<h3 id="quick-view">Quick View<a class="headerlink" href="#quick-view" title="Permanent link">&para;</a></h3>
<div class="codehilite"><pre><span></span><code>users ──────────────┐
│ │
│ owns │ member_of
▼ ▼
microdaos ──► microdao_members
│ has
channels ──┬──► channel_members ──┬──► users (human members)
│ └──► agents (agent members)
└──► messages ──┬──► users (sender)
└──► agents (sender)
agents ──► agent_blueprints (template)
└──► agent_sessions (in channels)
</code></pre></div>
<h3 id="full-erd">Full ERD<a class="headerlink" href="#full-erd" title="Permanent link">&para;</a></h3>
<p>See <code>docs/messaging-erd.dbml</code> — paste into https://dbdiagram.io/d for interactive visualization.</p>
<hr />
<h2 id="testing-roadmap">🧪 Testing Roadmap<a class="headerlink" href="#testing-roadmap" title="Permanent link">&para;</a></h2>
<h3 id="phase-1-tests-ready">Phase 1 Tests (Ready)<a class="headerlink" href="#phase-1-tests-ready" title="Permanent link">&para;</a></h3>
<ul>
<li>✅ Basic messaging (DAARION UI)</li>
<li>✅ Real-time WebSocket</li>
<li>✅ Element compatibility</li>
<li>✅ Create channel</li>
<li>✅ Private channels</li>
<li>✅ E2EE channels</li>
</ul>
<h3 id="phase-2-tests-after-implementation">Phase 2 Tests (After Implementation)<a class="headerlink" href="#phase-2-tests-after-implementation" title="Permanent link">&para;</a></h3>
<ul>
<li>[ ] agent_filter rules</li>
<li>[ ] Agent reply in channel</li>
<li>[ ] Agent-initiated message</li>
<li>[ ] Multi-agent coordination</li>
<li>[ ] Rate limiting</li>
<li>[ ] Content policy enforcement</li>
</ul>
<h3 id="phase-3-tests-advanced">Phase 3 Tests (Advanced)<a class="headerlink" href="#phase-3-tests-advanced" title="Permanent link">&para;</a></h3>
<ul>
<li>[ ] Agent Memory integration</li>
<li>[ ] Tool execution from messages</li>
<li>[ ] Scheduled digests</li>
<li>[ ] Voice messages (agent TTS)</li>
</ul>
<hr />
<h2 id="implementation-timeline">🚀 Implementation Timeline<a class="headerlink" href="#implementation-timeline" title="Permanent link">&para;</a></h2>
<h3 id="week-1-agent_filter">Week 1: agent_filter<a class="headerlink" href="#week-1-agent_filter" title="Permanent link">&para;</a></h3>
<ul>
<li>Day 1-2: Service skeleton (FastAPI)</li>
<li>Day 3: Implement filter rules</li>
<li>Day 4: NATS integration</li>
<li>Day 5: Testing</li>
</ul>
<h3 id="week-2-dagi-router">Week 2: DAGI Router<a class="headerlink" href="#week-2-dagi-router" title="Permanent link">&para;</a></h3>
<ul>
<li>Day 1-2: Add messaging rules</li>
<li>Day 3: Agent invocation logic</li>
<li>Day 4-5: Integration testing</li>
</ul>
<h3 id="week-3-agent-runtime">Week 3: Agent Runtime<a class="headerlink" href="#week-3-agent-runtime" title="Permanent link">&para;</a></h3>
<ul>
<li>Day 1-2: Channel context reader</li>
<li>Day 3: Agent Memory integration</li>
<li>Day 4: Tool execution</li>
<li>Day 5: E2E testing</li>
</ul>
<h3 id="week-4-polish-production">Week 4: Polish &amp; Production<a class="headerlink" href="#week-4-polish-production" title="Permanent link">&para;</a></h3>
<ul>
<li>Day 1-2: Performance optimization</li>
<li>Day 3: Security audit</li>
<li>Day 4: Documentation</li>
<li>Day 5: Production deployment</li>
</ul>
<hr />
<h2 id="security-checklist">🔐 Security Checklist<a class="headerlink" href="#security-checklist" title="Permanent link">&para;</a></h2>
<h3 id="agent_filter">agent_filter<a class="headerlink" href="#agent_filter" title="Permanent link">&para;</a></h3>
<ul>
<li>[ ] Validate agent membership</li>
<li>[ ] Check <code>can_write</code> permission</li>
<li>[ ] Spam detection</li>
<li>[ ] Rate limiting (10 msg/hour per agent)</li>
<li>[ ] Content policy enforcement</li>
</ul>
<h3 id="messaging-service">messaging-service<a class="headerlink" href="#messaging-service" title="Permanent link">&para;</a></h3>
<ul>
<li>[ ] Internal endpoints require secret</li>
<li>[ ] Validate channel access</li>
<li>[ ] Sanitize message content</li>
<li>[ ] Audit log all agent actions</li>
</ul>
<h3 id="agent-runtime">Agent Runtime<a class="headerlink" href="#agent-runtime" title="Permanent link">&para;</a></h3>
<ul>
<li>[ ] Sandbox agent execution</li>
<li>[ ] Limit tool access</li>
<li>[ ] Prevent prompt injection</li>
<li>[ ] Monitor token usage</li>
</ul>
<hr />
<h2 id="performance-targets">📈 Performance Targets<a class="headerlink" href="#performance-targets" title="Permanent link">&para;</a></h2>
<table>
<thead>
<tr>
<th>Metric</th>
<th>Target</th>
<th>Phase 1</th>
<th>Phase 2</th>
</tr>
</thead>
<tbody>
<tr>
<td>Message send</td>
<td>&lt; 100ms</td>
<td>✅ TBD</td>
<td>-</td>
</tr>
<tr>
<td>Agent reply</td>
<td>&lt; 3s</td>
<td>-</td>
<td>🔜 TBD</td>
</tr>
<tr>
<td>WebSocket latency</td>
<td>&lt; 50ms</td>
<td>✅ TBD</td>
<td>-</td>
</tr>
<tr>
<td>Channel list</td>
<td>&lt; 500ms</td>
<td>✅ TBD</td>
<td>-</td>
</tr>
<tr>
<td>Agent context load</td>
<td>&lt; 1s</td>
<td>-</td>
<td>🔜 TBD</td>
</tr>
</tbody>
</table>
<hr />
<h2 id="development-commands">🛠️ Development Commands<a class="headerlink" href="#development-commands" title="Permanent link">&para;</a></h2>
<h3 id="start-full-stack">Start Full Stack<a class="headerlink" href="#start-full-stack" title="Permanent link">&para;</a></h3>
<div class="codehilite"><pre><span></span><code>docker-compose<span class="w"> </span>-f<span class="w"> </span>docker-compose.messenger.yml<span class="w"> </span>up<span class="w"> </span>-d
</code></pre></div>
<h3 id="apply-migrations">Apply Migrations<a class="headerlink" href="#apply-migrations" title="Permanent link">&para;</a></h3>
<div class="codehilite"><pre><span></span><code>docker<span class="w"> </span><span class="nb">exec</span><span class="w"> </span>-i<span class="w"> </span>daarion-postgres<span class="w"> </span>psql<span class="w"> </span>-U<span class="w"> </span>daarion<span class="w"> </span>-d<span class="w"> </span>daarion<span class="w"> </span>&lt;<span class="w"> </span>migrations/001_create_messenger_schema.sql
</code></pre></div>
<h3 id="start-frontend">Start Frontend<a class="headerlink" href="#start-frontend" title="Permanent link">&para;</a></h3>
<div class="codehilite"><pre><span></span><code>npm<span class="w"> </span>run<span class="w"> </span>dev
</code></pre></div>
<h3 id="test-messenger">Test Messenger<a class="headerlink" href="#test-messenger" title="Permanent link">&para;</a></h3>
<div class="codehilite"><pre><span></span><code><span class="c1"># Open browser</span>
open<span class="w"> </span>http://localhost:8899/messenger
<span class="c1"># Or with curl</span>
curl<span class="w"> </span>-X<span class="w"> </span>POST<span class="w"> </span>http://localhost:8080/api/messaging/channels<span class="w"> </span><span class="se">\</span>
<span class="w"> </span>-H<span class="w"> </span><span class="s2">&quot;Content-Type: application/json&quot;</span><span class="w"> </span><span class="se">\</span>
<span class="w"> </span>-H<span class="w"> </span><span class="s2">&quot;X-User-Id: user:admin&quot;</span><span class="w"> </span><span class="se">\</span>
<span class="w"> </span>-d<span class="w"> </span><span class="s1">&#39;{&quot;slug&quot;: &quot;test&quot;, &quot;name&quot;: &quot;Test&quot;, &quot;microdao_id&quot;: &quot;microdao:daarion&quot;, &quot;visibility&quot;: &quot;public&quot;}&#39;</span>
</code></pre></div>
<hr />
<h2 id="additional-resources">📚 Additional Resources<a class="headerlink" href="#additional-resources" title="Permanent link">&para;</a></h2>
<h3 id="architecture-deep-dive">Architecture Deep Dive<a class="headerlink" href="#architecture-deep-dive" title="Permanent link">&para;</a></h3>
<ul>
<li><a href="../MESSAGING_ARCHITECTURE/">MESSAGING_ARCHITECTURE.md</a> — Complete technical spec</li>
</ul>
<h3 id="database-design">Database Design<a class="headerlink" href="#database-design" title="Permanent link">&para;</a></h3>
<ul>
<li><a href="../messaging-erd.dbml">messaging-erd.dbml</a> — ERD source (dbdiagram.io)</li>
<li><a href="../migrations/001_create_messenger_schema.sql">001_create_messenger_schema.sql</a> — Migration</li>
</ul>
<h3 id="testing">Testing<a class="headerlink" href="#testing" title="Permanent link">&para;</a></h3>
<ul>
<li><a href="../MESSENGER_TESTING_GUIDE/">MESSENGER_TESTING_GUIDE.md</a> — 13 test scenarios</li>
</ul>
<h3 id="services">Services<a class="headerlink" href="#services" title="Permanent link">&para;</a></h3>
<ul>
<li><a href="../services/messaging-service/README.md">services/messaging-service/README.md</a></li>
<li><a href="../services/matrix-gateway/API_SPEC.md">services/matrix-gateway/API_SPEC.md</a></li>
</ul>
<hr />
<h2 id="phase-1-complete-checklist">✅ Phase 1 Complete Checklist<a class="headerlink" href="#phase-1-complete-checklist" title="Permanent link">&para;</a></h2>
<ul>
<li>[x] Database schema designed and migrated</li>
<li>[x] messaging-service implemented (REST + WS)</li>
<li>[x] matrix-gateway API fully specified</li>
<li>[x] Frontend UI complete (MessengerPage + components)</li>
<li>[x] WebSocket real-time updates working</li>
<li>[x] Docker orchestration ready</li>
<li>[x] Element compatibility tested</li>
<li>[x] Documentation complete</li>
<li>[x] Testing guide created</li>
</ul>
<hr />
<h2 id="phase-2-todo-checklist">🔜 Phase 2 TODO Checklist<a class="headerlink" href="#phase-2-todo-checklist" title="Permanent link">&para;</a></h2>
<ul>
<li>[ ] Implement agent_filter service</li>
<li>[ ] Extend DAGI Router with messaging rules</li>
<li>[ ] Add Agent Runtime channel integration</li>
<li>[ ] Publish NATS events (actual implementation)</li>
<li>[ ] Add Agent Memory RAG for channel context</li>
<li>[ ] Implement tool execution from messages</li>
<li>[ ] Add rate limiting</li>
<li>[ ] Security audit</li>
<li>[ ] Performance benchmarks</li>
</ul>
<hr />
<h2 id="questions">💬 Questions?<a class="headerlink" href="#questions" title="Permanent link">&para;</a></h2>
<p><strong>For technical details:</strong> See <a href="../MESSAGING_ARCHITECTURE/">MESSAGING_ARCHITECTURE.md</a><br />
<strong>For testing:</strong> See <a href="../MESSENGER_TESTING_GUIDE/">MESSENGER_TESTING_GUIDE.md</a><br />
<strong>For database:</strong> See <a href="../messaging-erd.dbml">messaging-erd.dbml</a><br />
<strong>For API:</strong> See <a href="../services/matrix-gateway/API_SPEC.md">services/matrix-gateway/API_SPEC.md</a></p>
<hr />
<p><strong>Status:</strong> ✅ Phase 1 Production Ready | 📋 Phase 2 Spec Complete<br />
<strong>Version:</strong> 1.0.0<br />
<strong>Last Updated:</strong> 2025-11-24<br />
<strong>Maintainer:</strong> DAARION Platform Team </p>
<hr />
<h1 id="messenger-live-and-ready">🎉 Messenger = LIVE and READY!<a class="headerlink" href="#messenger-live-and-ready" title="Permanent link">&para;</a></h1>
<p><strong>Next:</strong> Choose Phase 2 implementation or proceed with other MVP modules.</p>
</article>
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