bot/docs/diagnostics/flags.md

summary, read_when, title

summary	read_when	title
Diagnostics flags for targeted debug logs	You need targeted debug logs without raising global logging levels You need to capture subsystem-specific logs for support	Diagnostics Flags

Diagnostics Flags

Diagnostics flags let you enable targeted debug logs without turning on verbose logging everywhere. Flags are opt-in and have no effect unless a subsystem checks them.

How it works

• Flags are strings (case-insensitive).
• You can enable flags in config or via an env override.
• Wildcards are supported:
  • telegram.* matches telegram.http
  • * enables all flags

Enable via config

{
  "diagnostics": {
    "flags": ["telegram.http"]
  }
}

Multiple flags:

{
  "diagnostics": {
    "flags": ["telegram.http", "gateway.*"]
  }
}

Restart the gateway after changing flags.

Env override (one-off)

BOT_DIAGNOSTICS=telegram.http,telegram.payload

Disable all flags:

BOT_DIAGNOSTICS=0

Where logs go

Flags emit logs into the standard diagnostics log file. By default:

/tmp/bot/bot-YYYY-MM-DD.log

If you set logging.file, use that path instead. Logs are JSONL (one JSON object per line). Redaction still applies based on logging.redactSensitive.

Extract logs

Pick the latest log file:

ls -t /tmp/bot/bot-*.log | head -n 1

Filter for Telegram HTTP diagnostics:

rg "telegram http error" /tmp/bot/bot-*.log

Or tail while reproducing:

tail -f /tmp/bot/bot-$(date +%F).log | rg "telegram http error"

For remote gateways, you can also use hanzo-bot logs --follow (see /cli/logs).

Notes

• If logging.level is set higher than warn, these logs may be suppressed. Default info is fine.
• Flags are safe to leave enabled; they only affect log volume for the specific subsystem.
• Use /logging to change log destinations, levels, and redaction.