feat(opencode): add killswitch indicators to TUI sidebar

README.md

@@ -19,8 +19,8 @@ This repo is a Bun workspace monorepo with two user-facing integrations and one
 | Primary Claude Pro/Max OAuth | OpenCode `/connect anthropic` | Pi `/login anthropic` |
 | Provider integration point | OpenCode plugin fetch/request transform | Pi `registerProvider("anthropic")` provider override |
 | Sidecar config | `~/.config/opencode/anthropic-auth.json` | `~/.pi/agent/anthropic-auth.json` |
-| Commands | `/claude-cache`, `/claude-cachekeep`, `/claude-fast`, `/claude-quota`, `/claude-dump` | `/claude-cache`, `/claude-cachekeep`, `/claude-fast`, `/claude-quota`, `/claude-dump` |
-| Fallback accounts, quota routing, relay, dumps, fast mode | Supported | Supported through the same shared core and Pi sidecar |
+| Commands | `/claude-cache`, `/claude-cachekeep`, `/claude-fast`, `/claude-quota`, `/claude-dump`, `/claude-killswitch` | `/claude-cache`, `/claude-cachekeep`, `/claude-fast`, `/claude-quota`, `/claude-dump` |
+| Fallback accounts, quota routing, killswitch, relay, dumps, fast mode | Supported | Supported through the same shared core and Pi sidecar |
 
 ## What CortexKit adds over the original plugin
 
@@ -30,6 +30,7 @@ This repo is a Bun workspace monorepo with two user-facing integrations and one
 - **Cache keepalive**: use `/claude-cachekeep HH-HH` to pre-warm hybrid cache anchors for active sessions before the 1-hour TTL expires.
 - **Fast mode toggle**: use `/claude-fast on|off` to request Anthropic fast mode for supported Opus models.
 - **Live quota visibility**: use `/claude-quota` to see main and fallback quota state, reset times, and refresh errors.
+- **Killswitch**: per-account hard-block thresholds that stop requests before hitting Anthropic's rate limits, with synthetic 429 retry-after when all accounts are exhausted.
 - **User-owned Cloudflare relay**: optionally provision your own Worker relay to reduce repeated client upload bytes for large OpenCode or Pi requests.
 - **Claude-compatible request hardening**: final-body billing signing, safer token refresh persistence, replay-safe fallback retries, and subagent cache isolation.
 
@@ -169,6 +170,11 @@ Example:
     },
     "failClosedOnUnknownQuota": true
   },
+  "killswitch": {
+    "enabled": false,
+    "main": { "five_hour": 5, "seven_day": 10 },
+    "accounts": {}
+  },
   "claudeCache": {
     "enabled": false,
     "mode": "explicit"