diff --git a/backend/internal/grpcsrv/commander/commander.go b/backend/internal/grpcsrv/commander/commander.go
index ba0cec0..429adff 100644
--- a/backend/internal/grpcsrv/commander/commander.go
+++ b/backend/internal/grpcsrv/commander/commander.go
@@ -4,6 +4,7 @@ import (
 	"context"
 	"fmt"
 	"io"
+	"log"
 	"sync"
 
 	"gitea.d3m0k1d.ru/d3m0k1d/HellreigN/backend/internal/models"
@@ -77,20 +78,26 @@ func (self *Commander) removeAgent(aid string) {
 }
 
 func (self *Agent) AddJob(job models.JobForInsert) (int64, error) {
+	log.Printf("[DEBUG] AddJob: agent=%s, command=%v", self.aid, job.Command)
 	jid, err := self.jobber.InitJob(self.ctx, self.aid, job)
 	if err != nil {
+		log.Printf("[DEBUG] AddJob: InitJob failed: %v", err)
 		return 0, err
 	}
+	log.Printf("[DEBUG] AddJob: InitJob returned jid=%d, sending to self.in channel", jid)
 	self.in <- &proto.Command{
 		Id:      jid,
 		Command: job.Command,
 		Stdin:   job.Stdin,
 	}
+	log.Printf("[DEBUG] AddJob: sent to self.in channel successfully")
 	return jid, err
 }
 
 func (self *Agent) WaitJob(jid int64) (*models.Job, error) {
+	log.Printf("[DEBUG] WaitJob: agent=%s, jid=%d, waiting on self.jobs[%d].out", self.aid, jid, jid)
 	result := <-self.jobs[jid].out
+	log.Printf("[DEBUG] WaitJob: agent=%s, jid=%d, received result", self.aid, jid)
 	return &result.fc, result.err
 }
 
@@ -134,6 +141,7 @@ func (self *Agent) recv() error {
 			if err != nil {
 				return
 			}
+			log.Printf("[DEBUG] recv: agent=%s, received finished job id=%d", self.aid, msg.Id)
 			return self.jobber.UpdateJobInDB(self.ctx, msg.Id, models.JobForUpdate{
 				Stdout: msg.Stdout,
 				Stderr: msg.Stderr,
@@ -141,25 +149,33 @@ func (self *Agent) recv() error {
 			})
 		}()
 		if err == io.EOF {
+			log.Printf("[DEBUG] recv: agent=%s, EOF received", self.aid)
 			return nil
 		}
-		// TODO: that would blow up at some point
+		if err != nil {
+			log.Printf("[DEBUG] recv: agent=%s, error: %v", self.aid, err)
+		}
 		out := self.jobs[job.ID].out
 		out <- JobOut{
 			fc:  job,
 			err: err,
 		}
 		close(out)
+		log.Printf("[DEBUG] recv: agent=%s, sent result for job id=%d", self.aid, job.ID)
 	}
 }
 
 func (self *Agent) send() error {
 	for job := range self.in {
+		log.Printf("[DEBUG] send: agent=%s, job id=%d, command=%v", self.aid, job.Id, job.Command)
 		self.jobs[job.Id] = newJob()
 		if err := self.bidi.Send(job); err != nil {
+			log.Printf("[DEBUG] send: agent=%s, failed to send job id=%d: %v", self.aid, job.Id, err)
 			return err
 		}
+		log.Printf("[DEBUG] send: agent=%s, sent job id=%d to agent", self.aid, job.Id)
 	}
+	log.Printf("[DEBUG] send: agent=%s, self.in channel closed", self.aid)
 	return io.EOF
 	// self.jobs[]
 }
diff --git a/backend/internal/handlers/jobs.go b/backend/internal/handlers/jobs.go
index c26d26c..ed1c796 100644
--- a/backend/internal/handlers/jobs.go
+++ b/backend/internal/handlers/jobs.go
@@ -2,6 +2,7 @@ package handlers
 
 import (
 	"fmt"
+	"log"
 	"net/http"
 
 	"gitea.d3m0k1d.ru/d3m0k1d/HellreigN/backend/internal/grpcsrv/commander"
@@ -44,16 +45,21 @@ type AddJobOut struct {
 // @Success 201 {object} AddJobOut
 // @Router /jobs [post]
 func (self *JobsHandlers) AddJob(c *gin.Context) {
+	log.Printf("[DEBUG] AddJob handler: request received")
 	err := func() error {
 		var in AddJobIn
 		if err := c.Bind(&in); err != nil {
+			log.Printf("[DEBUG] AddJob handler: bind failed: %v", err)
 			return err
 		}
+		log.Printf("[DEBUG] AddJob handler: agent_id=%s, command=%s, interpreter_id=%d", in.AgentID, in.Command, in.InterpreterID)
 		agent, ok := self.cmder.GetAgent(in.AgentID)
 		if !ok {
+			log.Printf("[DEBUG] AddJob handler: agent %s not found", in.AgentID)
 			c.Status(http.StatusNotFound)
 			return fmt.Errorf("agent not found")
 		}
+		log.Printf("[DEBUG] AddJob handler: agent found, resolving command")
 
 		var command []string
 		if in.InterpreterID == 0 {
@@ -62,21 +68,27 @@ func (self *JobsHandlers) AddJob(c *gin.Context) {
 			var err error
 			command, err = self.svc.ResolveCommand(c.Request.Context(), in.InterpreterID, in.Command)
 			if err != nil {
+				log.Printf("[DEBUG] AddJob handler: ResolveCommand failed: %v", err)
 				return err
 			}
 		}
 
+		log.Printf("[DEBUG] AddJob handler: calling agent.AddJob with command=%v", command)
 		jid, err := agent.AddJob(models.JobForInsert{
 			Command: command,
 			Stdin:   in.Stdin,
 		})
 		if err != nil {
+			log.Printf("[DEBUG] AddJob handler: agent.AddJob failed: %v", err)
 			return err
 		}
+		log.Printf("[DEBUG] AddJob handler: agent.AddJob returned jid=%d, calling WaitJob", jid)
 		job, err := agent.WaitJob(jid)
 		if err != nil {
+			log.Printf("[DEBUG] AddJob handler: agent.WaitJob failed: %v", err)
 			return err
 		}
+		log.Printf("[DEBUG] AddJob handler: agent.WaitJob returned job id=%d, status=%d", job.ID, job.Status)
 		c.JSON(http.StatusCreated, AddJobOut{
 			ID:      job.ID,
 			Command: job.Command,
@@ -85,6 +97,7 @@ func (self *JobsHandlers) AddJob(c *gin.Context) {
 			Stderr:  job.Stderr,
 			Status:  job.Status,
 		})
+		log.Printf("[DEBUG] AddJob handler: response sent")
 		return nil
 	}()
 	if err != nil {