clawdbot/docs/logging.md

summary, read_when

summary	read_when
Logging surfaces, file logs, WS log styles, and console formatting	Changing logging output or formats Debugging CLI or gateway output

Logging

Clawdis has two log “surfaces”:

• Console output (what you see in the terminal / Debug UI).
• File logs (JSON lines) written by the internal logger.

File-based logger

Clawdis uses a file logger backed by tslog (src/logging.ts).

• Default rolling log file is under /tmp/clawdis/ (one file per day): clawdis-YYYY-MM-DD.log
• The log file path and level can be configured via ~/.clawdis/clawdis.json:
  • logging.file
  • logging.level

The file format is one JSON object per line.

Console capture

The CLI entrypoint enables console capture (src/index.ts calls enableConsoleCapture()). That means every console.log/info/warn/error/debug/trace is also written into the file logs, while still behaving normally on stdout/stderr.

Gateway WebSocket logs

The gateway prints WebSocket protocol logs in two modes:

• Normal mode (no --verbose): only “interesting” RPC results are printed:
  • errors (ok=false)
  • slow calls (default threshold: >= 50ms)
  • parse errors
• Verbose mode (--verbose): prints all WS request/response traffic.

WS log style

clawdis gateway supports a per-gateway style switch:

• --ws-log auto (default): normal mode is optimized; verbose mode uses compact output
• --ws-log compact: compact output (paired request/response) when verbose
• --ws-log full: full per-frame output when verbose
• --compact: alias for --ws-log compact

Examples:

# optimized (only errors/slow)
clawdis gateway

# show all WS traffic (paired)
clawdis gateway --verbose --ws-log compact

# show all WS traffic (full meta)
clawdis gateway --verbose --ws-log full

Console formatting (subsystem logging)

Clawdis formats console logs via a small wrapper on top of the existing stack:

• tslog for structured file logs (src/logging.ts)
• chalk for colors (src/globals.ts)

The console formatter is TTY-aware and prints consistent, prefixed lines. Subsystem loggers are created via createSubsystemLogger("gateway").

Behavior:

• Subsystem prefixes on every line (e.g. [gateway], [canvas], [tailscale])
• Subsystem colors (stable per subsystem) plus level coloring
• Color modes (logging.consoleColor: auto/always/never; auto honors NO_COLOR and TTY)
• Sub-loggers by subsystem (auto prefix + structured field { subsystem })
• logRaw() for QR/UX output (no prefix, no formatting)
• Console styles (e.g. pretty | compact | json)
• Console log level separate from file log level (file keeps full detail)

This keeps existing file logs stable while making interactive output scannable.