diff --git a/bin/u_agent/src/main.rs b/bin/u_agent/src/main.rs
index 3acc6de..5950181 100644
--- a/bin/u_agent/src/main.rs
+++ b/bin/u_agent/src/main.rs
@@ -13,7 +13,7 @@ use {
     std::env,
     u_lib::{
         api::ClientHandler,
-        contracts::*,
+        models::*,
         send_jobs_to_executor,
     },
 };
diff --git a/bin/u_panel/src/main.rs b/bin/u_panel/src/main.rs
index 8801333..24e8626 100644
--- a/bin/u_panel/src/main.rs
+++ b/bin/u_panel/src/main.rs
@@ -18,7 +18,7 @@ async fn main() -> Result<(), &'static str> {
         "ls" => {
             let result = cli_handler.ls().await;
             for cli in result.iter() {
-                println!("{:#?}", cli)
+                println!("{}", cli.0)
             }
         },
         _ => return Err("Unknown method")
diff --git a/bin/u_server/src/handlers.rs b/bin/u_server/src/handlers.rs
index 67cdf5f..0decc93 100644
--- a/bin/u_server/src/handlers.rs
+++ b/bin/u_server/src/handlers.rs
@@ -1,5 +1,4 @@
 use u_lib::{
-    contracts::*,
     models::*
 };
 use warp::{
diff --git a/bin/u_server/src/main.rs b/bin/u_server/src/main.rs
index 31971f2..b9e32e2 100644
--- a/bin/u_server/src/main.rs
+++ b/bin/u_server/src/main.rs
@@ -15,7 +15,6 @@ use env_logger;
 
 use u_lib::{
     MASTER_PORT,
-    contracts::*,
     api::Paths,
     models::*
 };
@@ -52,6 +51,11 @@ async fn main() {
         .and(warp::path(Paths::ls))
         .and(db.clone())
         .and_then(handlers::get_agents);
+
+    let upload_job = warp::post()
+        .and(warp::path(Paths::upload_job))
+        .and(db.clone())
+        .and_then(handlers::upload_job);
 /*
     let get_jobs = warp::get()
         .and(warp::path(Paths::get_jobs))
@@ -86,6 +90,7 @@ async fn main() {
 
     let auth_zone = auth_token
         .and(get_agents
+                 .or(upload_job)
 //            .or(set_jobs)
 //            .or(get_job_results)
         )
diff --git a/lib/u_lib/src/api.rs b/lib/u_lib/src/api.rs
index 58c71c5..61c00d1 100644
--- a/lib/u_lib/src/api.rs
+++ b/lib/u_lib/src/api.rs
@@ -3,7 +3,6 @@
 use crate::{
     MASTER_SERVER,
     MASTER_PORT,
-    contracts::*,
     models::*,
     UResult,
     UError
@@ -158,6 +157,8 @@ build_handler!(GET ls() -> ItemWrap<Vec<Agent>>);
 build_handler!(GET get_jobs() -> ItemWrap<Vec<JobMeta>>);
 // add client to server's db
 build_handler!(POST init(IAgent) -> RawMsg);
+// create and upload job (A)
+//build_handler!(POST upload_jobs)
 // ???
 /*build_handler!(POST del() -> ());
 // set jobs for client (A)
diff --git a/lib/u_lib/src/contracts/agent.rs b/lib/u_lib/src/contracts/agent.rs
deleted file mode 100644
index 91d3f85..0000000
--- a/lib/u_lib/src/contracts/agent.rs
+++ /dev/null
@@ -1,58 +0,0 @@
-use std::{
-    collections::HashMap,
-    time::SystemTime
-};
-use crate::{
-    contracts::*,
-    UID,
-    exec_job,
-    utils::vec_to_string,
-    models::*
-};
-
-use guess_host_triple::guess_host_triple;
-
-pub async fn gather() -> IAgent {
-
-    async fn run_cmd_fast(cmd: String) -> String {
-        let job = exec_job(
-            JobMeta::from_shell_arc(cmd)
-        ).await;
-        let job_result = match job.unwrap().data.unwrap() {
-            Ok(output) => output.multiline(),
-            Err(e) => e.to_string()
-        };
-        JobOutput::from_multiline(&job_result)
-            .map(|o| vec_to_string(&o.into_appropriate()))
-            .unwrap_or(job_result)
-    }
-
-    #[cfg(unix)]
-    IAgent {
-        alias: None,
-        id: UID.clone(),
-        hostname: run_cmd_fast("hostname".to_string()).await,
-        is_root: &run_cmd_fast("id -u".to_string()).await == "0",
-        is_root_allowed: false, //TODO
-        platform: guess_host_triple().unwrap_or("Error").to_string(),
-        status: None, //TODO
-        token: None, //TODO
-        username: run_cmd_fast("id -un".to_string()).await,
-    }
-}
-
-
-#[cfg(test)]
-mod tests {
-    use super::*;
-
-    #[tokio::test]
-    async fn test_gather() {
-        let cli_info = gather().await;
-        assert_eq!(
-            &cli_info.username,
-            "plazmoid"
-        )
-    }
-
-}
diff --git a/lib/u_lib/src/contracts/mod.rs b/lib/u_lib/src/contracts/mod.rs
deleted file mode 100644
index 4399f6e..0000000
--- a/lib/u_lib/src/contracts/mod.rs
+++ /dev/null
@@ -1,36 +0,0 @@
-pub mod jobs;
-pub mod messaging;
-pub mod agent;
-
-pub use {
-    messaging::*,
-    jobs::*,
-};
-
-use std::{
-    borrow::Cow
-};
-use crate::models::*;
-
-macro_rules! to_message {
-    ($($type:ty),+) => { $(
-
-        impl ToMsg for $type {}
-
-        impl<'cow> From<$type> for Cow<'cow, $type> {
-            #[inline]
-            fn from(obj: $type) -> Cow<'cow, $type> {
-                Cow::Owned(obj)
-            }
-        }
-
-        impl<'cow> From<&'cow $type> for Cow<'cow, $type> {
-            #[inline]
-            fn from(obj: &'cow $type) -> Cow<'cow, $type> {
-                Cow::Borrowed(obj)
-            }
-        } )+
-    }
-}
-
-to_message!(IAgent, Agent, RawMsg, JobMeta, JobResult);
diff --git a/lib/u_lib/src/executor.rs b/lib/u_lib/src/executor.rs
index cec5d6e..d32772a 100644
--- a/lib/u_lib/src/executor.rs
+++ b/lib/u_lib/src/executor.rs
@@ -2,142 +2,52 @@
 // job runner (thread)
 // every job runs in other thread/process
 /*
-use cron::Schedule as CronSchedule;
 
 enum Schedule {
     Persistent, // run forever, restart if stops (set max_retries)
     Cron(CronSchedule),
     Once
 }
-
 */
 
 use crate::{
-    contracts::*,
+    models::*,
     UResult,
 };
-use std::{
-    sync::{Mutex, MutexGuard, Arc},
-};
-//use tokio::task::JoinHandle;
-use futures::future::{join_all, JoinAll};
-use futures::Future;
 
+use std::collections::HashMap;
+use std::pin::Pin;
+use std::thread::sleep;
+use std::time::{Duration, Instant};
+use tokio::process::Command;
 
-type Executables = Vec<Job>;
+use futures::{lock::Mutex, prelude::*};
+use lazy_static::lazy_static;
+use tokio::{prelude::*, spawn, task::JoinHandle};
+use uuid::Uuid;
 
-struct AsyncExecutor {
-    new_jobs: Executables,
-    promises: Executables
-}
-
-impl AsyncExecutor {
-    pub fn new() -> Self {
-        Self {
-            new_jobs: vec![],
-            promises: vec![]
-        }
-    }
-/*
-    pub fn process_jobs(&mut self) {
-        new_jobs
-        if job.state() == JobState::Pending {
-            tokio::spawn(job.run);
-        }
-    }
-*/
-    pub async fn apply_job(&mut self, new_job: Job) -> UResult<JobResult> {
-        /*let id = new_job.id();
-        let mut job_pool = self.jobs.lock().unwrap();
-        job_pool.push(new_job);
-        id*/
-        tokio::spawn(async move {
-            new_job.run().await
-        }).await.unwrap()
-    }
-
-    pub async fn apply_jobs(&mut self, new_jobs: Vec<Job>) -> Vec<UResult<JobResult>> {
-        /*
-        let mut job_pool = self.jobs.lock().unwrap();
-        job_pool.extend(
-            new_jobs.into_iter()
-                .map(|job| (job.id(), job))
-        );*/
-        let futures = new_jobs.into_iter().map(|mut job| {
-            job.run()
-        }).collect::<Vec<_>>();
-        join_all(futures).await
-
-    }
-/*
-    pub fn get_job_result(&self, id: &Uuid) -> Option<JobResult> {
-        let mut job_pool = self.jobs.lock().unwrap();
-        let (state, result) = match job_pool.get(id) {
-            Some(job) => (job.state(), job.get_result()),
-            None => return None
-        };
-        if state == JobState::Finished {
-            job_pool.remove(&id);
-        }
-        Some(result)
-    }
-
-    pub fn get_all_results(&self) -> Vec<JobResult> {
-        let mut job_pool = self.jobs.lock().unwrap();
-        let to_remove = job_pool.values()
-            .filter(|job| job.finished())
-            .map(|job| job.id())
-            .collect::<Vec<Uuid>>();
-        let results = job_pool.values()
-            .map(|job| job.get_result())
-            .collect();
-        to_remove.into_iter().for_each(|id| {
-            job_pool.remove(&id);
-        });
-        results
-    }*/
-}
+pub type FutRes = String;
+type BoxFut<O> = Pin<Box<dyn Future<Output = O> + Send + 'static>>;
 
 lazy_static! {
-    static ref EXECUTOR: Mutex<AsyncExecutor> =
-        Mutex::new(AsyncExecutor::new());
-}
-/*
-pub fn get_job_result(id: &Uuid, wait: bool) -> Option<JobResult> {
-    let executor: MutexGuard<AsyncExecutor> = EXECUTOR.lock().unwrap();
-    loop {
-        let result = executor.get_job_result(&id);
-        if wait {
-            if result.is_some() && result.as_ref().unwrap().state == JobState::Finished {
-                return result
-            }
-            thread::sleep(Duration::from_secs(1))
-        } else {
-            return result
-        }
-    }
+    static ref FUT_RESULTS: Mutex<HashMap<Uuid, JoinHandle<FutRes>>> = Mutex::new(HashMap::new());
 }
 
-pub fn get_all_results() -> Vec<JobResult> {
-    let executor: MutexGuard<AsyncExecutor> = EXECUTOR.lock().unwrap();
-    executor.get_all_results()
+pub async fn apply_tasks(tasks: Vec<impl Future<Output=FutRes> + Send + 'static>) -> Vec<Uuid> {
+    let mut fids = Vec::<Uuid>::new();
+    for f in tasks.into_iter() {
+        let fid = Uuid::new_v4();
+        fids.push(fid);
+        let result = spawn(Box::pin(f));
+        FUT_RESULTS.lock().await.insert(fid, result);
+    }
+    fids
 }
-*/
 
-// run jobs without awaiting (now is waiting)
-pub async fn send_jobs_to_executor(
-    jobs: Vec<JobMetaRef>
-) -> Vec<UResult<JobResult>> {
-    let mut executor: MutexGuard<AsyncExecutor> = EXECUTOR.lock().unwrap();
-    let executables = jobs.into_iter()
-        .map(|job_meta| Job::new(job_meta))
-        .collect();
-    executor.apply_jobs(executables).await
+pub async fn apply_task(task: impl Future<Output=FutRes> + Send + 'static) -> Uuid {
+    apply_tasks(vec![Box::pin(task)]).await[0]
 }
 
-// run job and await result
-pub async fn exec_job(job_meta: JobMetaRef) -> UResult<JobResult> {
-    let mut executor: MutexGuard<AsyncExecutor> = EXECUTOR.lock().unwrap();
-    let job = Job::new(job_meta);
-    executor.apply_job(job).await
+pub async fn pop(fid: Uuid) -> Option<JoinHandle<FutRes>> {
+    FUT_RESULTS.lock().await.remove(&fid)
 }
\ No newline at end of file
diff --git a/lib/u_lib/src/lib.rs b/lib/u_lib/src/lib.rs
index 444a331..fa9216d 100644
--- a/lib/u_lib/src/lib.rs
+++ b/lib/u_lib/src/lib.rs
@@ -2,9 +2,9 @@ pub mod executor;
 pub mod config;
 pub mod utils;
 pub mod errors;
-pub mod contracts;
 pub mod api;
 pub mod models;
+pub mod messaging;
 
 pub use {
     utils::*,
@@ -18,4 +18,4 @@ pub use {
 extern crate lazy_static;
 
 #[macro_use]
-extern crate diesel;
\ No newline at end of file
+extern crate diesel;
diff --git a/lib/u_lib/src/contracts/messaging.rs b/lib/u_lib/src/messaging.rs
similarity index 100%
rename from lib/u_lib/src/contracts/messaging.rs
rename to lib/u_lib/src/messaging.rs
diff --git a/lib/u_lib/src/models/agent.rs b/lib/u_lib/src/models/agent.rs
index 4a440f0..2bf426a 100644
--- a/lib/u_lib/src/models/agent.rs
+++ b/lib/u_lib/src/models/agent.rs
@@ -3,15 +3,23 @@ use serde::{
     Deserialize
 };
 use std::time::SystemTime;
+use std::collections::HashMap;
 use diesel::{
     Queryable,
     Identifiable,
     Insertable
 };
-use crate::models::schema::*;
-use uuid::Uuid;
+;
+use crate::{
+    models::*
+    UID,
+    exec_job,
+    utils::vec_to_string,
+    models::schema::*
+};
 
-type Uid = String;
+use guess_host_triple::guess_host_triple;
+use uuid::Uuid;
 
 //belongs_to
 #[derive(Clone, Debug, Serialize, Deserialize, Identifiable, Queryable)]
@@ -42,4 +50,50 @@ pub struct IAgent {
     pub status: Option<String>,
     pub token: Option<String>,
     pub username: String
-}
\ No newline at end of file
+}
+
+
+pub async fn gather() -> IAgent {
+
+    async fn run_cmd_fast(cmd: String) -> String {
+        let job = exec_job(
+            JobMeta::from_shell_arc(cmd)
+        ).await;
+        let job_result = match job.unwrap().data.unwrap() {
+            Ok(output) => output.multiline(),
+            Err(e) => e.to_string()
+        };
+        JobOutput::from_multiline(&job_result)
+            .map(|o| vec_to_string(&o.into_appropriate()))
+            .unwrap_or(job_result)
+    }
+
+    #[cfg(unix)]
+    IAgent {
+        alias: None,
+        id: UID.clone(),
+        hostname: run_cmd_fast("hostname".to_string()).await,
+        is_root: &run_cmd_fast("id -u".to_string()).await == "0",
+        is_root_allowed: false, //TODO
+        platform: guess_host_triple().unwrap_or("Error").to_string(),
+        status: None, //TODO
+        token: None, //TODO
+        username: run_cmd_fast("id -un".to_string()).await,
+    }
+}
+
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[tokio::test]
+    async fn test_gather() {
+        let cli_info = gather().await;
+        assert_eq!(
+            &cli_info.username,
+            "plazmoid"
+        )
+    }
+
+}
diff --git a/lib/u_lib/src/contracts/jobs.rs b/lib/u_lib/src/models/jobs.rs
similarity index 89%
rename from lib/u_lib/src/contracts/jobs.rs
rename to lib/u_lib/src/models/jobs.rs
index 240dc6d..d086c02 100644
--- a/lib/u_lib/src/contracts/jobs.rs
+++ b/lib/u_lib/src/models/jobs.rs
@@ -9,18 +9,20 @@ use serde::{
     Deserialize
 };
 use uuid::Uuid;
+use guess_host_triple::guess_host_triple;
 use tokio::process::Command;
-use super::*;
 use crate::{
+    models::*
     UError,
     UErrType,
     UErrType::JobError,
     JobErrType,
     UResult,
-    utils::format_err
+    utils::format_err,
+    UID
 };
 
-pub type JobMetaRef = Arc<Mutex<JobMeta>>;
+//pub type JobMetaRef = Arc<Mutex<JobMeta>>;
 
 #[derive(Serialize, Deserialize, Clone, Debug)]
 pub enum ManageAction {
@@ -48,7 +50,7 @@ pub enum JobState {
 
 #[derive(Serialize, Deserialize, Clone, Debug)]
 pub enum JobType {
-    Manage(ManageAction),
+    Manage,
     Shell,
     Python,
     Binary
@@ -57,13 +59,10 @@ pub enum JobType {
 #[derive(Serialize, Deserialize, Clone, Debug)]
 pub struct JobMeta {
     pub id: Uuid,
-    pub name: String,
-    pub created: SystemTime,
-    pub updated: SystemTime,
-    pub state: JobState,
+    pub alias: String,
     pub exec_type: JobType,
     pub schedule: JobSchedule,
-    //pub append_result: bool, //true: append, false: rewrite
+    pub platform: String,
     pub payload: Option<Box<Vec<u8>>>,
 }
 
@@ -72,12 +71,10 @@ impl JobMeta {
         let job_name = shell_cmd.split(" ").nth(0).unwrap();
         Self {
             id: Uuid::new_v4(),
-            name: job_name.to_string(),
-            created: SystemTime::now(),
-            updated: SystemTime::now(),
-            state: JobState::Pending,
+            alias: job_name.to_string(),
             exec_type: JobType::Shell,
             schedule: JobSchedule::Once,
+            platform: guess_host_triple().unwrap_or("").to_string(),
             payload: Some(Box::new(shell_cmd.into_bytes()))
         }
     }
@@ -87,10 +84,6 @@ impl JobMeta {
             Self::from_shell(shell_cmd)
         ))
     }
-
-    pub fn touch(&mut self) {
-        self.updated = SystemTime::now();
-    }
 }
 
 
@@ -173,36 +166,42 @@ impl JobOutput {
 
 #[derive(Serialize, Deserialize, Clone, Debug)]
 pub struct JobResult {
-    pub id: Uuid,
-    pub data: Option<Result<JobOutput, UError>>,
+    //pub id: i32,
+    pub agent_id: Uuid,
+    pub job_id: Uuid,
+    pub result: Option<Result<JobOutput, UError>>,
     pub state: JobState,
     pub retcode: Option<i32>,
     pub timestamp: SystemTime,
 }
 
+impl JobResult {
+    pub fn from_meta(meta: &JobMeta) -> Self {
+        let job_id = meta.id.clone();
+        let state = meta.state.clone();
+        JobResult {
+            agent_id: *UID,
+            job_id,
+            state: if state == JobState::Queued {
+                JobState::Pending
+            } else {
+                state
+            },
+            result: None,
+            retcode: None,
+            timestamp: SystemTime::now()
+        }
+    }
+}
 
 pub struct Job {
-    result: JobResult,
-    meta: JobMetaRef,
+    result: JobResult
 }
 
 impl Job {
-    pub fn new(job_meta: JobMetaRef) -> Self {
-        let id = job_meta.lock().unwrap().id.clone();
-        let state = job_meta.lock().unwrap().state.clone();
+    pub fn new(job_meta: JobMeta) -> Self {
         Self {
-            result: JobResult {
-                id,
-                state: if state == JobState::Queued {
-                    JobState::Pending
-                } else {
-                    state
-                },
-                data: None,
-                retcode: None,
-                timestamp: SystemTime::now()
-            },
-            meta: job_meta,
+            result: JobResult::from_meta(&job_meta),
         }
     }
 
@@ -311,7 +310,7 @@ impl Job {
         self.state() == JobState::Finished
     }
 
-    pub fn into_result(mut self) -> JobResult {
+    pub fn into_result(mut self) -> JobResult { //TODO: Cow
         self.result.timestamp = SystemTime::now();
         self.result
     }
diff --git a/lib/u_lib/src/models/mod.rs b/lib/u_lib/src/models/mod.rs
index 6758fca..665e543 100644
--- a/lib/u_lib/src/models/mod.rs
+++ b/lib/u_lib/src/models/mod.rs
@@ -1,5 +1,38 @@
 mod agent;
 pub mod schema;
+pub mod jobs;
 
+pub use crate::{
+    models::{
+        agent::*,
+        jobs::*,
+    },
+    messaging::*,
+};
 
-pub use agent::*;
+use std::{
+    borrow::Cow
+};
+
+macro_rules! to_message {
+    ($($type:ty),+) => { $(
+
+        impl ToMsg for $type {}
+
+        impl<'cow> From<$type> for Cow<'cow, $type> {
+            #[inline]
+            fn from(obj: $type) -> Cow<'cow, $type> {
+                Cow::Owned(obj)
+            }
+        }
+
+        impl<'cow> From<&'cow $type> for Cow<'cow, $type> {
+            #[inline]
+            fn from(obj: &'cow $type) -> Cow<'cow, $type> {
+                Cow::Borrowed(obj)
+            }
+        } )+
+    }
+}
+
+to_message!(IAgent, Agent, RawMsg, JobMeta, JobResult);
diff --git a/lib/u_lib/src/models/schema.rs b/lib/u_lib/src/models/schema.rs
index ed89d5c..e69de29 100644
--- a/lib/u_lib/src/models/schema.rs
+++ b/lib/u_lib/src/models/schema.rs
@@ -1,73 +0,0 @@
-table! {
-    agents (id) {
-        alias -> Nullable<Text>,
-        agent_id -> Text,
-        hostname -> Text,
-        id -> Integer,
-        is_root -> Bool,
-        is_root_allowed -> Bool,
-        last_active -> Timestamp,
-        platform -> Text,
-        regtime -> Timestamp,
-        status -> Nullable<Text>,
-        token -> Nullable<Text>,
-        username -> Text,
-    }
-}
-
-table! {
-    certificates (id) {
-        agent_id -> Integer,
-        id -> Integer,
-        is_revoked -> Bool,
-    }
-}
-
-table! {
-    ip_addrs (id) {
-        agent_id -> Integer,
-        check_ts -> Timestamp,
-        gateway -> Nullable<Text>,
-        id -> Integer,
-        iface -> Text,
-        ip_addr -> Text,
-        is_gray -> Bool,
-        netmask -> Text,
-    }
-}
-
-table! {
-    jobs (id) {
-        alias -> Nullable<Text>,
-        id -> Integer,
-        job_type -> Text,
-        exec_type -> Text,
-        platform -> Nullable<Text>,
-        data -> Binary,
-    }
-}
-
-table! {
-    results (id) {
-        agent_id -> Integer,
-        created -> Timestamp,
-        id -> Integer,
-        job_id -> Integer,
-        result -> Nullable<Binary>,
-        status -> Nullable<Text>,
-        ts -> Timestamp,
-    }
-}
-
-joinable!(certificates -> agents (agent_id));
-joinable!(ip_addrs -> agents (agent_id));
-joinable!(results -> agents (agent_id));
-joinable!(results -> jobs (job_id));
-
-allow_tables_to_appear_in_same_query!(
-    agents,
-    certificates,
-    ip_addrs,
-    jobs,
-    results,
-);
diff --git a/migrations/2020-10-24-111622_create_all/down.sql b/migrations/2020-10-24-111622_create_all/down.sql
index 7d59dc2..faef607 100644
--- a/migrations/2020-10-24-111622_create_all/down.sql
+++ b/migrations/2020-10-24-111622_create_all/down.sql
@@ -1,4 +1 @@
-DROP TABLE agents;
-DROP TABLE ip_addrs;
-DROP TABLE jobs;
-DROP TABLE results;
\ No newline at end of file
+DROP DATABASE u_db;
diff --git a/migrations/2020-10-24-111622_create_all/up.sql b/migrations/2020-10-24-111622_create_all/up.sql
index f88007b..ea352d1 100644
--- a/migrations/2020-10-24-111622_create_all/up.sql
+++ b/migrations/2020-10-24-111622_create_all/up.sql
@@ -1,4 +1,6 @@
 CREATE EXTENSION IF NOT EXISTS "uuid-ossp";
+CREATE TYPE JOB_TYPE AS ENUM ('shell', 'manage', 'binary', 'python');
+CREATE TYPE TASK_STATUS AS ENUM ('queued', 'running', 'finished');
 
 CREATE TABLE IF NOT EXISTS agents (
     alias TEXT
@@ -21,7 +23,7 @@ CREATE TABLE IF NOT EXISTS ip_addrs (
     agent_id UUID NOT NULL
     , check_ts TIMESTAMP NOT NULL
     , gateway TEXT
-    , id SERIAL
+    , id UUID NOT NULL DEFAULT uuid_generate_v4()
     , iface TEXT NOT NULL
     , ip_addr TEXT NOT NULL
     , is_gray BOOLEAN NOT NULL DEFAULT true
@@ -32,13 +34,11 @@ CREATE TABLE IF NOT EXISTS ip_addrs (
 
 CREATE TABLE IF NOT EXISTS jobs (
     alias TEXT
-    , id SERIAL
+    , id UUID NOT NULL DEFAULT uuid_generate_v4()
     -- Shell, Binary (with program download),
     -- Python (with program and python download if not exist), Management
-    , job_type TEXT CHECK(job_type IN ('S','B','P','M')) NOT NULL DEFAULT 'S'
-    -- Executable type: ALL - no matter, W - windows, L = linux
-    , exec_type TEXT CHECK(exec_type IN ('ALL', 'W', 'L')) NOT NULL DEFAULT 'L'
-    , platform TEXT CHECK(platform IN ('x86', 'x64', 'aarch32', 'aarch64'))
+    , exec_type JOB_TYPE NOT NULL DEFAULT 'shell'
+    , platform TEXT NOT NULL
     , path TEXT NOT NULL
     , PRIMARY KEY(id)
 );
@@ -46,11 +46,12 @@ CREATE TABLE IF NOT EXISTS jobs (
 CREATE TABLE IF NOT EXISTS results (
     agent_id UUID NOT NULL
     , created TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP
-    , id SERIAL
+    , id UUID NOT NULL DEFAULT uuid_generate_v4()
     , job_id INTEGER NOT NULL
     , result TEXT
+    , retcode INTEGER
     -- Queued, Pending, Running, Finished
-    , status TEXT CHECK(status IN ('Q', 'P', 'R', 'F'))
+    , state TASK_STATUS NOT NULL DEFAULT 'queued'
     , ts TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP
     , FOREIGN KEY(agent_id) REFERENCES agents(id)
     , FOREIGN KEY(job_id) REFERENCES jobs(id)
@@ -59,7 +60,7 @@ CREATE TABLE IF NOT EXISTS results (
 
 CREATE TABLE IF NOT EXISTS certificates (
     agent_id UUID NOT NULL
-    , id SERIAL
+    , id UUID NOT NULL DEFAULT uuid_generate_v4()
     , is_revoked BOOLEAN NOT NULL DEFAULT FALSE
     , PRIMARY KEY(id)
     , FOREIGN KEY(agent_id) REFERENCES agents(id)