| name | propagator |
| description | Knowledge propagation engine. Knows what goes where when something changes. Use after any significant change to ensure all downstream targets are updated. |
Propagator — Change Propagation Engine
When a change happens in one part of the system, this skill ensures all downstream targets are updated.
Propagation Rules
Rule 1: Skill changed → seed repo
cd "${DND_PROJECT_DIR}" && bash d-nd-seed/scripts/sync_from_thia.sh
After sync: check diff, commit, push, notify other nodes.
Rule 2: Content updated → site deploy
cd "${DND_PROJECT_DIR}/site" && npm run build
Rule 3: Seed package updated → notify nodes
curl -s -X POST "http://${DND_VPS_IP}:${DND_VPS_PORT:-3002}/api/node-sync" \
-H "Content-Type: application/json" \
-H "X-Auth-Token: ${DND_API_TOKEN}" \
-d '{"from":"'${DND_NODE_ID}'","to":"ALL","type":"info","content":"Seed updated. Run git pull to get latest."}'
Rule 4: Runtime changed → deploy sequence
git pull && docker cp . ${DND_CONTAINER_NAME}:/app/ && docker restart ${DND_CONTAINER_NAME}
Propagation Checklist
After ANY significant change, ask:
Anti-pattern
Do NOT propagate without verification:
- Change → make the change
- Verify → test/check locally
- Commit → read the diff, then commit with clear message
- Propagate → run appropriate rules
- Confirm → verify downstream targets received the change
$ARGUMENTS
Eval
Trigger Tests
"I changed a skill, what else needs updating?" -> activates
"propagate this change" -> activates
"who else needs to know?" -> activates
"fix this typo" -> does NOT activate
Fidelity Tests
Given skill change: suggests sync to seed + notify nodes
Given site change: suggests build + deploy
Given no downstream impact: reports "no propagation needed"