diff --git a/src/main/java/git/tracehub/pmo/controller/ProjectController.java b/src/main/java/git/tracehub/pmo/controller/ProjectController.java
index 0a37ce7..63db58c 100644
--- a/src/main/java/git/tracehub/pmo/controller/ProjectController.java
+++ b/src/main/java/git/tracehub/pmo/controller/ProjectController.java
@@ -33,6 +33,7 @@
 import git.tracehub.pmo.security.ClaimOf;
 import git.tracehub.pmo.security.IdProvider;
 import git.tracehub.pmo.security.IdpToken;
+import io.swagger.v3.oas.annotations.Operation;
 import jakarta.validation.Valid;
 import java.util.List;
 import java.util.Map;
@@ -84,6 +85,7 @@ public class ProjectController {
      * @return List of projects
      */
     @GetMapping
+    @Operation(summary = "Get projects by user")
     public List<Project> byUser(@AuthenticationPrincipal final Jwt jwt) {
         return this.projects.byUser(
             new ClaimOf(jwt, "preferred_username").value()
@@ -97,6 +99,7 @@ public List<Project> byUser(@AuthenticationPrincipal final Jwt jwt) {
      * @return Project
      */
     @GetMapping("/{id}")
+    @Operation(summary = "Get project by id")
     @PreAuthorize("@hasProject.validate(#id)")
     public Project byId(@PathVariable final UUID id) {
         return this.projects.byId(id);
@@ -111,6 +114,7 @@ public Project byId(@PathVariable final UUID id) {
      * @checkstyle MethodBodyCommentsCheck (20 lines)
      */
     @PostMapping
+    @Operation(summary = "Create a new project")
     @PreAuthorize("hasAuthority('user_github') || hasAuthority('user_gitlab')")
     @ResponseStatus(HttpStatus.CREATED)
     public Project employ(
diff --git a/src/main/java/git/tracehub/pmo/controller/SecretController.java b/src/main/java/git/tracehub/pmo/controller/SecretController.java
index 82c28c4..7ed2165 100644
--- a/src/main/java/git/tracehub/pmo/controller/SecretController.java
+++ b/src/main/java/git/tracehub/pmo/controller/SecretController.java
@@ -30,6 +30,7 @@
 import git.tracehub.pmo.secret.Keys;
 import git.tracehub.pmo.secret.Secret;
 import git.tracehub.pmo.secret.Secrets;
+import io.swagger.v3.oas.annotations.Operation;
 import jakarta.validation.Valid;
 import java.util.List;
 import java.util.UUID;
@@ -84,6 +85,7 @@ public SecretController(
      * @return List of keys
      */
     @GetMapping("/keys")
+    @Operation(summary = "Get keys by project")
     public List<Key> byProject(@RequestParam final UUID project) {
         return this.keys.byProject(project);
     }
@@ -95,6 +97,7 @@ public List<Key> byProject(@RequestParam final UUID project) {
      * @return Secret
      */
     @GetMapping
+    @Operation(summary = "Get value by key")
     public Secret byValue(final Key key) {
         return this.secrets.value(key);
     }
@@ -106,6 +109,7 @@ public Secret byValue(final Key key) {
      * @return Secret
      */
     @PutMapping
+    @Operation(summary = "Update secret")
     public Secret update(@RequestBody @Valid final RqSecret secret) {
         return this.secrets.update(new SecretFromReq(secret));
     }
@@ -117,6 +121,7 @@ public Secret update(@RequestBody @Valid final RqSecret secret) {
      * @return Secret
      */
     @PostMapping
+    @Operation(summary = "Create a new secret")
     @ResponseStatus(HttpStatus.CREATED)
     public Secret create(@RequestBody @Valid final RqSecret secret) {
         return this.secrets.create(new SecretFromReq(secret));
diff --git a/src/main/java/git/tracehub/pmo/controller/TicketController.java b/src/main/java/git/tracehub/pmo/controller/TicketController.java
index e0ebbec..d08e72c 100644
--- a/src/main/java/git/tracehub/pmo/controller/TicketController.java
+++ b/src/main/java/git/tracehub/pmo/controller/TicketController.java
@@ -28,6 +28,7 @@
 import git.tracehub.pmo.controller.request.TicketFromReq;
 import git.tracehub.pmo.ticket.Ticket;
 import git.tracehub.pmo.ticket.Tickets;
+import io.swagger.v3.oas.annotations.Operation;
 import jakarta.validation.Valid;
 import java.util.Optional;
 import lombok.RequiredArgsConstructor;
@@ -64,6 +65,7 @@ public class TicketController {
      * @return Ticket
      */
     @GetMapping
+    @Operation(summary = "Get ticket by job path or issue number")
     public Ticket byJob(
         @RequestParam final String repo,
         @RequestParam final Optional<String> job,
@@ -89,6 +91,7 @@ public Ticket byJob(
      * @return Ticket
      */
     @PostMapping
+    @Operation(summary = "Create a new ticket")
     @ResponseStatus(HttpStatus.CREATED)
     public Ticket create(@RequestBody @Valid final RqTicket ticket) {
         return this.tickets.create(new TicketFromReq(ticket));