Logging

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Logging

CoderClaw (built on CoderClaw) logs in two places:

File logs (JSON lines) written by the Gateway.
Console output shown in terminals and the Control UI.

This page explains where logs live, how to read them, and how to configure log levels and formats.

Where logs live

By default, the Gateway writes a rolling log file under:

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

The date uses the gateway host’s local timezone.

You can override this in ~/.coderclaw/coderclaw.json:

{
  "logging": {
    "file": "/path/to/coderclaw.log"
  }
}

How to read logs

CLI: live tail (recommended)

Use the CLI to tail the gateway log file via RPC:

coderclaw logs --follow

Output modes:

TTY sessions: pretty, colorized, structured log lines.
Non-TTY sessions: plain text.
--json: line-delimited JSON (one log event per line).
--plain: force plain text in TTY sessions.
--no-color: disable ANSI colors.

In JSON mode, the CLI emits type-tagged objects:

meta: stream metadata (file, cursor, size)
log: parsed log entry
notice: truncation / rotation hints
raw: unparsed log line

If the Gateway is unreachable, the CLI prints a short hint to run:

coderclaw doctor

Control UI (web)

The Control UI’s Logs tab tails the same file using logs.tail. See /web/control-ui for how to open it.

Channel-only logs

To filter channel activity (WhatsApp/Telegram/etc), use:

coderclaw channels logs --channel whatsapp

Log formats

File logs (JSONL)

Each line in the log file is a JSON object. The CLI and Control UI parse these entries to render structured output (time, level, subsystem, message).

Console output

Console logs are TTY-aware and formatted for readability:

Subsystem prefixes (e.g. gateway/channels/whatsapp)
Level coloring (info/warn/error)
Optional compact or JSON mode

Console formatting is controlled by logging.consoleStyle.

Configuring logging

All logging configuration lives under logging in ~/.coderclaw/coderclaw.json.

{
  "logging": {
    "level": "info",
    "file": "/tmp/coderclaw/coderclaw-YYYY-MM-DD.log",
    "consoleLevel": "info",
    "consoleStyle": "pretty",
    "redactSensitive": "tools",
    "redactPatterns": ["sk-.*"]
  }
}

Log levels

logging.level: file logs (JSONL) level.
logging.consoleLevel: console verbosity level.

--verbose only affects console output; it does not change file log levels.

Console styles

logging.consoleStyle:

pretty: human-friendly, colored, with timestamps.
compact: tighter output (best for long sessions).
json: JSON per line (for log processors).

Redaction

Tool summaries can redact sensitive tokens before they hit the console:

logging.redactSensitive: off | tools (default: tools)
logging.redactPatterns: list of regex strings to override the default set

Redaction affects console output only and does not alter file logs.

Diagnostics + OpenTelemetry

Diagnostics are structured, machine-readable events for model runs and message-flow telemetry (webhooks, queueing, session state). They do not replace logs; they exist to feed metrics, traces, and other exporters.

Diagnostics events are emitted in-process, but exporters only attach when diagnostics + the exporter plugin are enabled.

OpenTelemetry vs OTLP

OpenTelemetry (OTel): the data model + SDKs for traces, metrics, and logs.
OTLP: the wire protocol used to export OTel data to a collector/backend.
CoderClaw exports via OTLP/HTTP (protobuf) today.

Signals exported

Metrics: counters + histograms (token usage, message flow, queueing).
Traces: spans for model usage + webhook/message processing.
Logs: exported over OTLP when diagnostics.otel.logs is enabled. Log volume can be high; keep logging.level and exporter filters in mind.

Diagnostic event catalog

Model usage:

model.usage: tokens, cost, duration, context, provider/model/channel, session ids.

Message flow:

webhook.received: webhook ingress per channel.
webhook.processed: webhook handled + duration.
webhook.error: webhook handler errors.
message.queued: message enqueued for processing.
message.processed: outcome + duration + optional error.

Queue + session:

queue.lane.enqueue: command queue lane enqueue + depth.
queue.lane.dequeue: command queue lane dequeue + wait time.
session.state: session state transition + reason.
session.stuck: session stuck warning + age.
run.attempt: run retry/attempt metadata.
diagnostic.heartbeat: aggregate counters (webhooks/queue/session).

Enable diagnostics (no exporter)

Use this if you want diagnostics events available to plugins or custom sinks:

{
  "diagnostics": {
    "enabled": true
  }
}

Diagnostics flags (targeted logs)

Use flags to turn on extra, targeted debug logs without raising logging.level. Flags are case-insensitive and support wildcards (e.g. telegram.* or *).

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

Env override (one-off):

CODERCLAW_DIAGNOSTICS=telegram.http,telegram.payload

Notes:

Flag logs go to the standard log file (same as logging.file).
Output is still redacted according to logging.redactSensitive.
Full guide: /diagnostics/flags.

Export to OpenTelemetry

Diagnostics can be exported via the diagnostics-otel plugin (OTLP/HTTP). This works with any OpenTelemetry collector/backend that accepts OTLP/HTTP.

{
  "plugins": {
    "allow": ["diagnostics-otel"],
    "entries": {
      "diagnostics-otel": {
        "enabled": true
      }
    }
  },
  "diagnostics": {
    "enabled": true,
    "otel": {
      "enabled": true,
      "endpoint": "http://otel-collector:4318",
      "protocol": "http/protobuf",
      "serviceName": "coderclaw-gateway",
      "traces": true,
      "metrics": true,
      "logs": true,
      "sampleRate": 0.2,
      "flushIntervalMs": 60000
    }
  }
}

Notes:

You can also enable the plugin with coderclaw plugins enable diagnostics-otel.
protocol currently supports http/protobuf only. grpc is ignored.
Metrics include token usage, cost, context size, run duration, and message-flow counters/histograms (webhooks, queueing, session state, queue depth/wait).
Traces/metrics can be toggled with traces / metrics (default: on). Traces include model usage spans plus webhook/message processing spans when enabled.
Set headers when your collector requires auth.
Environment variables supported: OTEL_EXPORTER_OTLP_ENDPOINT, OTEL_SERVICE_NAME, OTEL_EXPORTER_OTLP_PROTOCOL.

Exported metrics (names + types)

Model usage:

coderclaw.tokens (counter, attrs: coderclaw.token, coderclaw.channel, coderclaw.provider, coderclaw.model)
coderclaw.cost.usd (counter, attrs: coderclaw.channel, coderclaw.provider, coderclaw.model)
coderclaw.run.duration_ms (histogram, attrs: coderclaw.channel, coderclaw.provider, coderclaw.model)
coderclaw.context.tokens (histogram, attrs: coderclaw.context, coderclaw.channel, coderclaw.provider, coderclaw.model)

Message flow:

coderclaw.webhook.received (counter, attrs: coderclaw.channel, coderclaw.webhook)
coderclaw.webhook.error (counter, attrs: coderclaw.channel, coderclaw.webhook)
coderclaw.webhook.duration_ms (histogram, attrs: coderclaw.channel, coderclaw.webhook)
coderclaw.message.queued (counter, attrs: coderclaw.channel, coderclaw.source)
coderclaw.message.processed (counter, attrs: coderclaw.channel, coderclaw.outcome)
coderclaw.message.duration_ms (histogram, attrs: coderclaw.channel, coderclaw.outcome)

Queues + sessions:

coderclaw.queue.lane.enqueue (counter, attrs: coderclaw.lane)
coderclaw.queue.lane.dequeue (counter, attrs: coderclaw.lane)
coderclaw.queue.depth (histogram, attrs: coderclaw.lane or coderclaw.channel=heartbeat)
coderclaw.queue.wait_ms (histogram, attrs: coderclaw.lane)
coderclaw.session.state (counter, attrs: coderclaw.state, coderclaw.reason)
coderclaw.session.stuck (counter, attrs: coderclaw.state)
coderclaw.session.stuck_age_ms (histogram, attrs: coderclaw.state)
coderclaw.run.attempt (counter, attrs: coderclaw.attempt)

Exported spans (names + key attributes)

coderclaw.model.usage
- coderclaw.channel, coderclaw.provider, coderclaw.model
- coderclaw.sessionKey, coderclaw.sessionId
- coderclaw.tokens.* (input/output/cache_read/cache_write/total)
coderclaw.webhook.processed
- coderclaw.channel, coderclaw.webhook, coderclaw.chatId
coderclaw.webhook.error
- coderclaw.channel, coderclaw.webhook, coderclaw.chatId, coderclaw.error
coderclaw.message.processed
- coderclaw.channel, coderclaw.outcome, coderclaw.chatId, coderclaw.messageId, coderclaw.sessionKey, coderclaw.sessionId, coderclaw.reason
coderclaw.session.stuck
- coderclaw.state, coderclaw.ageMs, coderclaw.queueDepth, coderclaw.sessionKey, coderclaw.sessionId

Sampling + flushing

Trace sampling: diagnostics.otel.sampleRate (0.0–1.0, root spans only).
Metric export interval: diagnostics.otel.flushIntervalMs (min 1000ms).

Protocol notes

OTLP/HTTP endpoints can be set via diagnostics.otel.endpoint or OTEL_EXPORTER_OTLP_ENDPOINT.
If the endpoint already contains /v1/traces or /v1/metrics, it is used as-is.
If the endpoint already contains /v1/logs, it is used as-is for logs.
diagnostics.otel.logs enables OTLP log export for the main logger output.

Log export behavior

OTLP logs use the same structured records written to logging.file.
Respect logging.level (file log level). Console redaction does not apply to OTLP logs.
High-volume installs should prefer OTLP collector sampling/filtering.

Troubleshooting tips

Gateway not reachable? Run coderclaw doctor first.
Logs empty? Check that the Gateway is running and writing to the file path in logging.file.
Need more detail? Set logging.level to debug or trace and retry.