diff --git a/ARCHITECTURE.md b/ARCHITECTURE.md
index eae5c81..ba5d2b7 100644
--- a/ARCHITECTURE.md
+++ b/ARCHITECTURE.md
@@ -205,20 +205,30 @@ By default, all isolation environments automatically exit after command completi
 │  │ Execution   │    │ stdout/stderr│    │ Temp Log File     │   │
 │  └─────────────┘    └──────────────┘    └───────────────────┘   │
 │                                                                  │
-│  Log File Format:                                                │
+│  Console Output Format (Status Spine):                           │
 │  ┌─────────────────────────────────────────────────────────┐    │
-│  │ === Start Command Log ===                                │    │
-│  │ Timestamp: 2024-01-15 10:30:45                          │    │
-│  │ Command: <command>                                       │    │
-│  │ Shell: /bin/bash                                        │    │
-│  │ Platform: linux                                          │    │
-│  │ ==================================================      │    │
+│  │ │ session   abc-123-def-456                              │    │
+│  │ │ start     2024-01-15 10:30:45                          │    │
+│  │ │                                                        │    │
+│  │ $ <command>                                              │    │
+│  │                                                          │    │
 │  │ <command output>                                         │    │
-│  │ ==================================================      │    │
-│  │ Finished: 2024-01-15 10:30:46                           │    │
-│  │ Exit Code: 0                                             │    │
+│  │                                                          │    │
+│  │ ✓ (or ✗ for failure)                                     │    │
+│  │ │ finish    2024-01-15 10:30:46                          │    │
+│  │ │ duration  1.234s                                       │    │
+│  │ │ exit      0                                            │    │
+│  │ │                                                        │    │
+│  │ │ log       /tmp/start-command-123.log                   │    │
+│  │ │ session   abc-123-def-456                              │    │
 │  └─────────────────────────────────────────────────────────┘    │
 │                                                                  │
+│  Format key:                                                     │
+│  - │ prefix → tool metadata                                      │
+│  - $ prefix → executed command                                   │
+│  - No prefix → program output (stdout/stderr)                    │
+│  - ✓ / ✗ → result marker (success/failure)                       │
+│                                                                  │
 └─────────────────────────────────────────────────────────────────┘
 ```
 
diff --git a/README.md b/README.md
index 98d9719..89e45fc 100644
--- a/README.md
+++ b/README.md
@@ -96,16 +96,27 @@ Variables like `$packageName`, `$version`, `$repository` are captured and used i
 
 ### Automatic Logging
 
-All command output is automatically saved to your system's temporary directory with timestamps:
+All command output is automatically saved to your system's temporary directory. Output uses a "status spine" format with clear visual distinction:
 
 ```
-[2024-01-15 10:30:45.123] Starting: npm test
+│ session   abc-123-def-456-ghi
+│ start     2024-01-15 10:30:45
+│
+$ npm test
+
 ... command output ...
-[2024-01-15 10:30:52.456] Finished
-Exit code: 0
-Log saved: /tmp/start-command-1705312245123-abc123.log
+
+✓
+│ finish    2024-01-15 10:30:52
+│ duration  7.456s
+│ exit      0
+│
+│ log       /tmp/start-command-1705312245123-abc123.log
+│ session   abc-123-def-456-ghi
 ```
 
+The `│` prefix indicates tool metadata, `$` shows the executed command, and `✓`/`✗` indicates success/failure.
+
 ### Exit Code Display
 
 The exit code is always prominently displayed after command completion, making it clear whether the command succeeded or failed.
@@ -123,11 +134,20 @@ When a command fails (non-zero exit code) and it's a globally installed NPM pack
    - Link to uploaded log
 
 ```
-[2024-01-15 10:30:45.123] Starting: some-npm-tool --broken-arg
+│ session   abc-123-def-456-ghi
+│ start     2024-01-15 10:30:45
+│
+$ some-npm-tool --broken-arg
+
 ... error output ...
-[2024-01-15 10:30:46.789] Finished
-Exit code: 1
-Log saved: /tmp/start-command-1705312246789-def456.log
+
+✗
+│ finish    2024-01-15 10:30:46
+│ duration  1.789s
+│ exit      1
+│
+│ log       /tmp/start-command-1705312246789-def456.log
+│ session   abc-123-def-456-ghi
 
 Detected repository: https://github.com/owner/some-npm-tool
 Log uploaded: https://gist.github.com/user/abc123
@@ -315,25 +335,27 @@ You can create your own substitution patterns by placing a `substitutions.lino`
 
 ## Log File Format
 
-Log files are saved as `start-command-{timestamp}-{random}.log` and contain:
+Log files are saved as `start-command-{timestamp}-{random}.log` and contain the command output along with metadata. The console output uses a "status spine" format:
 
 ```
-=== Start Command Log ===
-Timestamp: 2024-01-15 10:30:45.123
-Command: bun test
-Shell: /bin/bash
-Platform: linux
-Bun Version: 1.2.0
-Working Directory: /home/user/project
-==================================================
+│ session   abc-123-def-456-ghi
+│ start     2024-01-15 10:30:45
+│
+$ bun test
 
 ... command output ...
 
-==================================================
-Finished: 2024-01-15 10:30:52.456
-Exit Code: 0
+✓
+│ finish    2024-01-15 10:30:52
+│ duration  7.456s
+│ exit      0
+│
+│ log       /tmp/start-command-1705312245123-abc123.log
+│ session   abc-123-def-456-ghi
 ```
 
+The log file itself contains the raw command output and execution metadata.
+
 ## License
 
 MIT
diff --git a/REQUIREMENTS.md b/REQUIREMENTS.md
index 6e8a26c..13b88e2 100644
--- a/REQUIREMENTS.md
+++ b/REQUIREMENTS.md
@@ -242,24 +242,51 @@ Note: `--auto-remove-docker-container` is only valid with `--isolated docker` an
 
 ## Output Format
 
+The output uses a "status spine" format that is width-independent, lossless, and works uniformly in TTY, tmux, SSH, CI, and log files.
+
+Format conventions:
+- `│` prefix → tool metadata
+- `$` prefix → executed command
+- No prefix → program output (stdout/stderr)
+- `✓` / `✗` → result marker (success/failure)
+
 ### Success Case
 
 ```
-[2024-01-15 10:30:45] Starting: ls -la
+│ session   abc-123-def-456-ghi
+│ start     2024-01-15 10:30:45
+│
+$ ls -la
+
 ... command output ...
-[2024-01-15 10:30:45] Finished
-Exit code: 0
-Log saved: /tmp/start-command-1705312245-abc123.log
+
+✓
+│ finish    2024-01-15 10:30:45
+│ duration  0.123s
+│ exit      0
+│
+│ log       /tmp/start-command-1705312245-abc123.log
+│ session   abc-123-def-456-ghi
 ```
 
 ### Failure Case (With Auto-Reporting)
 
 ```
-[2024-01-15 10:30:45] Starting: failing-npm-command --arg
+│ session   abc-123-def-456-ghi
+│ start     2024-01-15 10:30:45
+│
+$ failing-npm-command --arg
+
 ... command output/error ...
-[2024-01-15 10:30:46] Finished
-Exit code: 1
-Log saved: /tmp/start-command-1705312246-def456.log
+
+✗
+│ finish    2024-01-15 10:30:46
+│ duration  1.234s
+│ exit      1
+│
+│ log       /tmp/start-command-1705312246-def456.log
+│ session   abc-123-def-456-ghi
+
 Detected repository: https://github.com/owner/repo
 Log uploaded: https://gist.github.com/...
 Issue created: https://github.com/owner/repo/issues/123
@@ -268,11 +295,21 @@ Issue created: https://github.com/owner/repo/issues/123
 ### Failure Case (Without Auto-Reporting)
 
 ```
-[2024-01-15 10:30:45] Starting: unknown-command
+│ session   abc-123-def-456-ghi
+│ start     2024-01-15 10:30:45
+│
+$ unknown-command
+
 ... command output/error ...
-[2024-01-15 10:30:45] Finished
-Exit code: 127
-Log saved: /tmp/start-command-1705312245-ghi789.log
+
+✗
+│ finish    2024-01-15 10:30:45
+│ duration  0.050s
+│ exit      127
+│
+│ log       /tmp/start-command-1705312245-ghi789.log
+│ session   abc-123-def-456-ghi
+
 Repository not detected - automatic issue creation skipped
 ```