feat: rate limiting de tools por room en registry
Añade rate limiting de tool calls por room usando sliding window:
- tools/ratelimit.go: RateLimiter con sliding window per key (room),
Allow() para verificar/registrar llamadas, Cleanup() para limpiar
entries expiradas
- tools/registry.go: SetRateLimiter() y ExecuteForRoom() que verifica
el rate limit antes de ejecutar, logueando tool_rate_limited si excede
- internal/config/schema.go: ToolRateLimitCfg en SecurityCfg con
enabled, max_calls_per_min y cleanup_interval_s
- agents/runtime.go: inicializa rate limiter desde config y arranca
goroutine de cleanup periodico
- agents/commands.go: usa ExecuteForRoom en !tool command
Config YAML:
security:
tool_rate_limit:
enabled: true
max_calls_per_min: 10
Parte de issue 0019c (prompt injection hardening — rate limiting).
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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@@ -107,7 +107,7 @@ func (a *Agent) cmdTool(ctx context.Context, msgCtx decision.MessageContext) str
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"args", argsJSON,
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)
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result := a.toolReg.Execute(ctx, toolName, argsJSON)
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result := a.toolReg.ExecuteForRoom(ctx, toolName, argsJSON, msgCtx.RoomID)
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if result.Err != nil {
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return fmt.Sprintf("Error ejecutando %s: %s", toolName, result.Err)
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}
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