feat: add mcp-rss server and declarative digest cron job

flake.nix

@@ -45,6 +45,9 @@
 
     # NOTE: https://github.com/haras-unicorn/mcp-nix/blob/v0.1.3/README.md
     mcp-nix.url = "github:haras-unicorn/mcp-nix/refs/tags/v0.1.3";
+
+    # NOTE: https://github.com/haras-unicorn/mcp-rss/blob/v0.2.0/README.md
+    mcp-rss.url = "github:haras-unicorn/mcp-rss/refs/tags/v0.2.0";
   };
 
   outputs =

src/modules/ai/zeroclaw/USER.md → src/modules/ai/zeroclaw/agent/USER.md

@@ -1,4 +1,4 @@
-# Sarah
+# USER.md
 
 28, trans woman, software engineer.
 

src/modules/ai/zeroclaw/cron/DIGEST.md

@@ -0,0 +1,31 @@
+# DIGEST.md
+
+Shared digest: fetch rules and cron job instructions.
+
+## Cron Job Instructions
+
+When running the digest cron job:
+
+1. Read `DIGEST.md` from your workspace to get feeds, filters and preferences
+   and last run date.
+2. Get all articles from feeds via `rss__get_articles` with `time_from` as the
+   last time this job ran from `DIGEST.md` if it exists.
+3. Fetch all the fetched articles with `rss__fetch_article`.
+4. Use `memory_store` to remember all the fetched articles that pass filters
+   from `DIGEST.md` in your workspace. Use keys like
+   `digest:<feed-slug>-<article-slug>` and set values as the article summary in
+   1-2 sentences with the link to the article at the end in the following
+   format: `# <title>\n\n<summary-paragraph>\n\nLink: <link>\n`.
+5. Generate a report summarizing new items grouped by theme, newest first.
+6. Write down when the cron job started in the workspace `DIGEST.md`.
+7. Deliver the report to the configured channel.
+8. If nothing is new, report a single line. If fetch fails, state plainly.
+
+## Rules
+
+- Report Language: English.
+- Links: Keep item links in reports.
+- On failure: Say so plainly. Never fabricate items.
+- Tools: Never use `http_request` or `web_fetch` tools to fetch feeds or
+  articles. Always use `rss__get_articles` to fetch feeds and
+  `rss__fetch_article` to fetch articles.

src/modules/ai/zeroclaw/default.nix

@@ -9,6 +9,7 @@
 # MATRIX_HOMESERVER
 # MATRIX_USER_ID
 # MATRIX_PEER
+# MATRIX_DIGEST_ROOM
 # GIT_USER
 # GIT_EMAIL
 # GIT_SSH_KEY
@@ -101,7 +102,11 @@ in
           risk_profile = "main";
           runtime_profile = "main";
           channels = [ "matrix.main" ];
-          mcp_bundles = [ "dev" ];
+          mcp_bundles = [
+            "dev"
+            "digest"
+          ];
+          cron_jobs = [ "digest" ];
         };
 
         schema_version = 3;
@@ -255,6 +260,9 @@ in
             "TodoWrite"
             "mcp_resources"
 
+            "rss__get_articles"
+            "rss__fetch_article"
+
             "nixos__nix"
             "nixos__nix_versions"
 
@@ -481,16 +489,44 @@ in
                 ];
               };
             }
+            {
+              name = "rss";
+              transport = "stdio";
+              command = lib.getExe inputs.mcp-rss.packages.${system}.mcp-rss;
+            }
           ];
         };
 
-        mcp_bundles.dev = {
-          servers = [
-            "nixos"
-            "nix"
-            "git"
-            "github"
-          ];
+        mcp_bundles = {
+          dev = {
+            servers = [
+              "nixos"
+              "nix"
+              "git"
+              "github"
+            ];
+          };
+          digest = {
+            servers = [
+              "rss"
+            ];
+          };
+        };
+
+        cron = {
+          digest = {
+            job_type = "agent";
+            schedule = {
+              kind = "cron";
+              expr = "0 6 * * *";
+            };
+            prompt = builtins.readFile ./cron/DIGEST.md;
+            delivery = {
+              mode = "announce";
+              channel = "matrix.main";
+              to = "$MATRIX_DIGEST_ROOM";
+            };
+          };
         };
 
         web_search = {
@@ -627,11 +663,11 @@ in
           mv -f "${dataDir}/.config.toml.tmp" "${dataDir}/config.toml"
 
           mkdir -p ${agentWorkspaceDir}
-          install -m 0644 ${./AGENTS.md} "${agentWorkspaceDir}/AGENTS.md"
-          install -m 0644 ${./IDENTITY.md} "${agentWorkspaceDir}/IDENTITY.md"
-          install -m 0644 ${./SOUL.md} "${agentWorkspaceDir}/SOUL.md"
-          install -m 0644 ${./TOOLS.md} "${agentWorkspaceDir}/TOOLS.md"
-          install -m 0644 ${./USER.md} "${agentWorkspaceDir}/USER.md"
+          install -m 0644 ${./agent/AGENTS.md} "${agentWorkspaceDir}/AGENTS.md"
+          install -m 0644 ${./agent/IDENTITY.md} "${agentWorkspaceDir}/IDENTITY.md"
+          install -m 0644 ${./agent/SOUL.md} "${agentWorkspaceDir}/SOUL.md"
+          install -m 0644 ${./agent/TOOLS.md} "${agentWorkspaceDir}/TOOLS.md"
+          install -m 0644 ${./agent/USER.md} "${agentWorkspaceDir}/USER.md"
         '';
         script = ''
           zeroclaw daemon