session reliability: reconnect, knowledge loop, retire request_execution

Phase 1 — crash recovery: SSE auto-reconnect + backoff, polling gate
during disconnect, connection banner with retry button, empty-response
retry 3x, non-terminal resume on empty response, persistent error cards.

Phase 2/4 — visibility + continuation: custom ExecutionStatus renderer,
approvals extracted on every tool_result (not just done), activity bar
with status/goal, SessionDigest live polling, Continue button.

Phase 3 — cleanup: complete_task auto-cancels orphaned approvals,
deletes assent/destructive window keys, propose_plan marks pending
steps as replaced, plan step seq-order enforcement.

Phase 5 — knowledge loop: list_lxcs state filter (active/destroyed),
SOUL.md unmissable writeback section, propose_plan validation nudge,
complete_task writeback check, upsert_knowledge about array support,
plan generation grouping in frontend, session approval count badge.

Retire request_execution — all mutations now route through run.
Updated SOUL.md, AGENTS.md, CLIENTS.md, skills, and agent system notes.

Migration 020: plan step generation column, audit_log session_id index,
nomos_plan_executions pending-approval index.

nomos/skills/homelab-ops/SKILL.md

@@ -7,8 +7,9 @@
 ## Overview
 
 Standard operating procedures for the Nomos agent managing the hubris
-homelab. All mutations route through `request_execution` → Oikos policy
-gating → actuator (SSH).
+homelab. All mutations route through `run` → Oikos policy
+gating → actuator (SSH). The `request_execution` fixed-enum tool was retired
+2026-07-14.
 
 ## Procedures
 
@@ -22,13 +23,13 @@ gating → actuator (SSH).
 
 ### Signal response
 
-- `reversible_low` with validated pattern → `request_execution` (auto-restart)
+- `reversible_low` with validated pattern → `run` (auto-restart)
 - `config_mutation` or `destructive` → escalate to operator
 - Repeated flapping → escalate with flap count
 
 ### Execution tracking
 
-1. `request_execution` returns a correlation_id
+1. `run` returns the execution ID in its result text
 2. Poll `get_event_timeline` filtering by correlation_id
 3. Once complete, `get_health_summary` to verify recovery
 4. Record outcome via internal reasoning
@@ -41,7 +42,9 @@ gating → actuator (SSH).
 
 ## Changelog
 
-### 2026-07-08 — rename to Nomos
+### 2026-07-14 — request_execution retired
+All references to `request_execution` replaced with `run`. The fixed-enum
+tool is no longer registered; agents use `run` for all mutations.
 Agent renamed from Hermes to Nomos (N0 milestone).
 
 ### 2026-07-07 — initial Phase 4 skill