diff --git a/scarb/src/bin/scarb/commands/add.rs b/scarb/src/bin/scarb/commands/add.rs
index 2cf9df3f3..84486bf2c 100644
--- a/scarb/src/bin/scarb/commands/add.rs
+++ b/scarb/src/bin/scarb/commands/add.rs
@@ -1,13 +1,14 @@
-use anyhow::{anyhow, Result};
+use anyhow::anyhow;
 
 use scarb::core::Config;
 use scarb::manifest_editor::{AddDependency, DepId, EditManifestOptions, Op};
 use scarb::{manifest_editor, ops};
 
 use crate::args::{AddArgs, AddSourceArgs};
+use crate::errors::ScarbResult;
 
 #[tracing::instrument(skip_all, level = "info")]
-pub fn run(args: AddArgs, config: &mut Config) -> Result<()> {
+pub fn run(args: AddArgs, config: &mut Config) -> ScarbResult<()> {
     let ws = ops::read_workspace(config.manifest_path(), config)?;
 
     // TODO(#127): Extract more generic pattern for this. See `Packages` struct in Cargo.
diff --git a/scarb/src/bin/scarb/commands/build.rs b/scarb/src/bin/scarb/commands/build.rs
index 8f9e49ef3..d50c68893 100644
--- a/scarb/src/bin/scarb/commands/build.rs
+++ b/scarb/src/bin/scarb/commands/build.rs
@@ -1,10 +1,9 @@
-use anyhow::Result;
-
+use crate::errors::ScarbResult;
 use scarb::core::Config;
 use scarb::ops;
 
 #[tracing::instrument(skip_all, level = "info")]
-pub fn run(config: &Config) -> Result<()> {
+pub fn run(config: &Config) -> ScarbResult<()> {
     let ws = ops::read_workspace(config.manifest_path(), config)?;
-    ops::compile(&ws)
+    ops::compile(&ws).map_err(Into::into)
 }
diff --git a/scarb/src/bin/scarb/commands/clean.rs b/scarb/src/bin/scarb/commands/clean.rs
index a0c59b232..b04b49a00 100644
--- a/scarb/src/bin/scarb/commands/clean.rs
+++ b/scarb/src/bin/scarb/commands/clean.rs
@@ -1,9 +1,9 @@
-use anyhow::Result;
 use scarb::core::Config;
 
+use crate::errors::ScarbResult;
 use scarb::ops;
 
 #[tracing::instrument(skip_all, level = "info")]
-pub fn run(config: &Config) -> Result<()> {
-    ops::clean(config)
+pub fn run(config: &Config) -> ScarbResult<()> {
+    ops::clean(config).map_err(Into::into)
 }
diff --git a/scarb/src/bin/scarb/commands/commands.rs b/scarb/src/bin/scarb/commands/commands.rs
index 2a727de80..80886ea80 100644
--- a/scarb/src/bin/scarb/commands/commands.rs
+++ b/scarb/src/bin/scarb/commands/commands.rs
@@ -1,10 +1,10 @@
-use anyhow::Result;
 use serde::{Serialize, Serializer};
 use std::collections::BTreeMap;
 use std::path::PathBuf;
 use std::{env, fmt, fs};
 
 use crate::args::ScarbArgs;
+use crate::errors::ScarbResult;
 use scarb::core::Config;
 use scarb::process::is_executable;
 use scarb::ui::Message;
@@ -86,7 +86,7 @@ fn list_commands(config: &Config, builtins: &BTreeMap<String, Option<String>>) -
 }
 
 #[tracing::instrument(skip_all, level = "info")]
-pub fn run(config: &Config) -> Result<()> {
+pub fn run(config: &Config) -> ScarbResult<()> {
     let builtins = ScarbArgs::get_builtin_subcommands();
     config.ui().print(list_commands(config, &builtins));
     Ok(())
diff --git a/scarb/src/bin/scarb/commands/external.rs b/scarb/src/bin/scarb/commands/external.rs
index 860a703f5..1badef4cd 100644
--- a/scarb/src/bin/scarb/commands/external.rs
+++ b/scarb/src/bin/scarb/commands/external.rs
@@ -1,17 +1,18 @@
 use std::ffi::OsString;
 
-use anyhow::{anyhow, Result};
+use anyhow::anyhow;
 
+use crate::errors::ScarbResult;
 use scarb::core::Config;
 use scarb::ops::execute_external_subcommand;
 
 #[tracing::instrument(skip_all, level = "info")]
-pub fn run(args: Vec<OsString>, config: &Config) -> Result<()> {
+pub fn run(args: Vec<OsString>, config: &Config) -> ScarbResult<()> {
     assert!(!args.is_empty());
     let cmd = &args[0]
         .clone()
         .into_string()
         .map_err(|_| anyhow!("command name must be valid UTF-8"))?;
     let args = &args.iter().skip(1).map(AsRef::as_ref).collect::<Vec<_>>();
-    execute_external_subcommand(cmd, args, config)
+    execute_external_subcommand(cmd, args, config).map_err(Into::into)
 }
diff --git a/scarb/src/bin/scarb/commands/fmt.rs b/scarb/src/bin/scarb/commands/fmt.rs
index bbd1c3509..f7fa2263a 100644
--- a/scarb/src/bin/scarb/commands/fmt.rs
+++ b/scarb/src/bin/scarb/commands/fmt.rs
@@ -1,21 +1,22 @@
-use anyhow::Result;
-
 use crate::args::FmtArgs;
+use crate::errors::{ErrorWithExitCode, ScarbResult};
 use scarb::core::Config;
 use scarb::ops;
 
 #[tracing::instrument(skip_all, level = "info")]
-pub fn run(args: FmtArgs, config: &Config) -> Result<()> {
+pub fn run(args: FmtArgs, config: &Config) -> ScarbResult<()> {
     let ws = ops::read_workspace(config.manifest_path(), config)?;
-    match ops::format(
+
+    if ops::format(
         ops::FmtOptions {
             check: args.check,
             pkg_name: args.package,
             color: !args.no_color,
         },
         &ws,
-    ) {
-        Ok(true) => Ok(()),
-        _ => std::process::exit(1),
+    )? {
+        Ok(())
+    } else {
+        Err(ErrorWithExitCode::code(1))
     }
 }
diff --git a/scarb/src/bin/scarb/commands/init.rs b/scarb/src/bin/scarb/commands/init.rs
index bb8d9e46d..bc965746a 100644
--- a/scarb/src/bin/scarb/commands/init.rs
+++ b/scarb/src/bin/scarb/commands/init.rs
@@ -1,15 +1,16 @@
 use std::env;
 
-use anyhow::{anyhow, Result};
+use anyhow::anyhow;
 use camino::Utf8PathBuf;
 
 use scarb::core::Config;
 use scarb::ops::{self, VersionControl};
 
 use crate::args::InitArgs;
+use crate::errors::ScarbResult;
 
 #[tracing::instrument(skip_all, level = "info")]
-pub fn run(args: InitArgs, config: &Config) -> Result<()> {
+pub fn run(args: InitArgs, config: &Config) -> ScarbResult<()> {
     let path = Utf8PathBuf::from_path_buf(env::current_dir()?)
         .map_err(|path| anyhow!("path `{}` is not UTF-8 encoded", path.display()))?;
 
diff --git a/scarb/src/bin/scarb/commands/manifest_path.rs b/scarb/src/bin/scarb/commands/manifest_path.rs
index 068ef055b..bbfd2d53a 100644
--- a/scarb/src/bin/scarb/commands/manifest_path.rs
+++ b/scarb/src/bin/scarb/commands/manifest_path.rs
@@ -1,10 +1,9 @@
-use anyhow::Result;
-
+use crate::errors::ScarbResult;
 use scarb::core::Config;
 use scarb::ui::ValueMessage;
 
 #[tracing::instrument(skip_all, level = "info")]
-pub fn run(config: &Config) -> Result<()> {
+pub fn run(config: &Config) -> ScarbResult<()> {
     let canonical = dunce::canonicalize(config.manifest_path())
         .unwrap_or_else(|_| config.manifest_path().into());
     let canonical = canonical.to_string_lossy();
diff --git a/scarb/src/bin/scarb/commands/metadata.rs b/scarb/src/bin/scarb/commands/metadata.rs
index 91dc8bd04..5bf470d61 100644
--- a/scarb/src/bin/scarb/commands/metadata.rs
+++ b/scarb/src/bin/scarb/commands/metadata.rs
@@ -1,14 +1,13 @@
-use anyhow::Result;
-
 use scarb::core::Config;
 use scarb::metadata::{Metadata, MetadataOptions};
 use scarb::ops;
 use scarb::ui::MachineMessage;
 
 use crate::args::MetadataArgs;
+use crate::errors::ScarbResult;
 
 #[tracing::instrument(skip_all, level = "info")]
-pub fn run(args: MetadataArgs, config: &Config) -> Result<()> {
+pub fn run(args: MetadataArgs, config: &Config) -> ScarbResult<()> {
     let ws = ops::read_workspace(config.manifest_path(), config)?;
 
     let opts = MetadataOptions {
diff --git a/scarb/src/bin/scarb/commands/mod.rs b/scarb/src/bin/scarb/commands/mod.rs
index f9d1f1fef..7daff064d 100644
--- a/scarb/src/bin/scarb/commands/mod.rs
+++ b/scarb/src/bin/scarb/commands/mod.rs
@@ -1,10 +1,9 @@
 #![allow(clippy::module_inception)]
 
-use anyhow::Result;
-
 use scarb::core::Config;
 
 use crate::args::Command;
+use crate::errors::ScarbResult;
 
 pub mod add;
 pub mod build;
@@ -18,7 +17,7 @@ pub mod metadata;
 pub mod new;
 pub mod remove;
 
-pub fn run(command: Command, config: &mut Config) -> Result<()> {
+pub fn run(command: Command, config: &mut Config) -> ScarbResult<()> {
     use Command::*;
 
     match command {
diff --git a/scarb/src/bin/scarb/commands/new.rs b/scarb/src/bin/scarb/commands/new.rs
index 1439bdd34..0dfa22b0c 100644
--- a/scarb/src/bin/scarb/commands/new.rs
+++ b/scarb/src/bin/scarb/commands/new.rs
@@ -1,12 +1,11 @@
-use anyhow::Result;
-
 use scarb::core::Config;
 use scarb::ops::{self, VersionControl};
 
 use crate::args::NewArgs;
+use crate::errors::ScarbResult;
 
 #[tracing::instrument(skip_all, level = "info")]
-pub fn run(args: NewArgs, config: &Config) -> Result<()> {
+pub fn run(args: NewArgs, config: &Config) -> ScarbResult<()> {
     let result = ops::new_package(
         ops::InitOptions {
             name: args.init.name,
diff --git a/scarb/src/bin/scarb/commands/remove.rs b/scarb/src/bin/scarb/commands/remove.rs
index 2969a4d26..3c6b2083c 100644
--- a/scarb/src/bin/scarb/commands/remove.rs
+++ b/scarb/src/bin/scarb/commands/remove.rs
@@ -1,13 +1,14 @@
-use anyhow::{anyhow, Result};
+use anyhow::anyhow;
 
 use scarb::core::{Config, PackageName};
 use scarb::manifest_editor::{EditManifestOptions, Op, RemoveDependency};
 use scarb::{manifest_editor, ops};
 
 use crate::args::RemoveArgs;
+use crate::errors::ScarbResult;
 
 #[tracing::instrument(skip_all, level = "info")]
-pub fn run(args: RemoveArgs, config: &mut Config) -> Result<()> {
+pub fn run(args: RemoveArgs, config: &mut Config) -> ScarbResult<()> {
     let ws = ops::read_workspace(config.manifest_path(), config)?;
 
     // TODO(#127): Extract more generic pattern for this. See `Packages` struct in Cargo.
diff --git a/scarb/src/bin/scarb/main.rs b/scarb/src/bin/scarb/main.rs
index 898b30337..9c15df45f 100644
--- a/scarb/src/bin/scarb/main.rs
+++ b/scarb/src/bin/scarb/main.rs
@@ -1,10 +1,11 @@
 use std::env;
 
-use anyhow::Result;
 use clap::Parser;
+use tracing::debug;
 use tracing_log::AsTrace;
 use tracing_subscriber::EnvFilter;
 
+use crate::errors::{ErrorWithExitCode, ScarbResult};
 use args::ScarbArgs;
 use scarb::core::Config;
 use scarb::ops;
@@ -12,6 +13,7 @@ use scarb::ui::Ui;
 
 mod args;
 mod commands;
+mod errors;
 
 fn main() {
     let args = ScarbArgs::parse();
@@ -30,12 +32,21 @@ fn main() {
     let ui = Ui::new(args.ui_verbosity(), args.output_format());
 
     if let Err(err) = cli_main(args) {
-        ui.anyhow(&err);
-        std::process::exit(1);
+        exit_with_error(err, &ui);
     }
 }
 
-fn cli_main(args: ScarbArgs) -> Result<()> {
+fn exit_with_error(err: ErrorWithExitCode, ui: &Ui) {
+    debug!("exit_with_error; err={:?}", err);
+
+    let ErrorWithExitCode { source, exit_code } = err;
+    if let Some(source_err) = source {
+        ui.anyhow(&source_err);
+    }
+    std::process::exit(exit_code);
+}
+
+fn cli_main(args: ScarbArgs) -> ScarbResult<()> {
     let ui_verbosity = args.ui_verbosity();
     let ui_output_format = args.output_format();