Method skillSubSessionTools

pkg/runtime/loop.go:1262–1293

skillSubSessionTools augments the agent's tools for a fork-mode skill sub-session: it applies the skill's allowed-tools allow-list to the inherited agent tools, then appends the tools from the skill's assistive toolsets (which bypass the allow-list — the skill explicitly asked for them). It is a no-

(ctx context.Context, sess *session.Session, a *agent.Agent, agentTools []tools.Tool, events EventSink)

// toolsets (which bypass the allow-list — the skill explicitly asked for
// them). It is a no-op for ordinary sessions that set neither field.
func (r *LocalRuntime) skillSubSessionTools(ctx context.Context, sess *session.Session, a *agent.Agent, agentTools []tools.Tool, events EventSink) []tools.Tool {
	if len(sess.AllowedTools) == 0 && len(sess.ExtraToolSets) == 0 {
		return agentTools
	}

	agentTools = filterAllowedTools(agentTools, sess.AllowedTools)

	for _, ts := range sess.ExtraToolSets {
		tools.ConfigureHandlers(ts,
			r.elicitationHandler,
			r.samplingHandler,
			func() { events.Emit(Authorization(tools.ElicitationActionAccept, a.Name())) },
			r.managedOAuth,
			r.unmanagedOAuthRedirectURI,
		)
		if startable, ok := tools.As[tools.Startable](ts); ok {
			if err := startable.Start(ctx); err != nil {
				slog.WarnContext(ctx, "Skill toolset failed to start; skipping",
					"agent", a.Name(), "toolset", tools.DescribeToolSet(ts), "error", err)
				continue
			}
		}
		extra, err := ts.Tools(ctx)
		if err != nil {
			slog.WarnContext(ctx, "Skill toolset listing failed; skipping",
				"agent", a.Name(), "toolset", tools.DescribeToolSet(ts), "error", err)
			continue
		}
		agentTools = append(agentTools, extra...)
	}
	return agentTools
}

// reprobe re-runs ensureToolSetsAreStarted after a batch of tool calls.
// If new tools became available (by name-set diff), it emits a ToolsetInfo