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gcp-logs

gcp-logs

github.com/hyperlane-xyzCloud & DevOps7650 installsUpdated today
Repository

About gcp-logs

A query skill for investigating GCP Logs, aimed at debugging relayer, validator, and scraper behavior. It provides query templates, noise filters, and a progressive approach to retrieving log details.

Key features

  1. 01Component-specific query templates
  2. 02Log noise filters
  3. 03Progressive detail retrieval
  4. 04Search by message ID or severity
  5. 05Time-range and output-format options

Use cases

  1. 01Debugging message-processing issues
  2. 02Investigating operational incidents and errors
  3. 03Tracing messages with high retry counts

Install

Copy the command and run it in a terminal.

$npx skills add https://github.com/hyperlane-xyz/hyperlane-monorepo --skill gcp-logs

After installing, type/gcp-logsin Claude Code to confirm it loaded.

Details

From the project README

GCP Logs Query Skill

When to Use

  • Investigating relayer, validator, or scraper behavior
  • Debugging message processing issues
  • Analyzing operational incidents
  • Looking for specific errors or patterns in agent logs

Prerequisites

  • gcloud CLI installed and authenticated
  • Access to abacus-labs-dev GCP project

Base Query Templates

Relayer (Omniscient)
gcloud logging read 'resource.type="k8s_container" AND resource.labels.project_id="abacus-labs-dev" AND resource.labels.location="us-east1-c" AND resource.labels.cluster_name="hyperlane-mainnet" AND resource.labels.namespace_name="mainnet3" AND labels.k8s-pod/app_kubernetes_io/component="relayer" AND labels.k8s-pod/app_kubernetes_io/instance="omniscient-relayer" AND labels.k8s-pod/app_kubernetes_io/name="hyperlane-agent"' --project=abacus-labs-dev --limit=50 --format=json --freshness=1d
Validator
gcloud logging read 'resource.type="k8s_container" AND resource.labels.project_id="abacus-labs-dev" AND resource.labels.location="us-east1-c" AND resource.labels.cluster_name="hyperlane-mainnet" AND resource.labels.namespace_name="mainnet3" AND labels.k8s-pod/app_kubernetes_io/component="validator" AND labels.k8s-pod/app_kubernetes_io/name="hyperlane-agent"' --project=abacus-labs-dev --limit=50 --format=json --freshness=1d
Scraper
gcloud logging read 'resource.type="k8s_container" AND resource.labels.project_id="abacus-labs-dev" AND resource.labels.location="us-east1-c" AND resource.labels.cluster_name="hyperlane-mainnet" AND resource.labels.namespace_name="mainnet3" AND labels.k8s-pod/app_kubernetes_io/component="scraper3" AND labels.k8s-pod/app_kubernetes_io/instance="omniscient-scraper" AND labels.k8s-pod/app_kubernetes_io/name="hyperlane-agent"' --project=abacus-labs-dev --limit=50 --format=json --freshness=1d

Noise Filtering

Add these filters to reduce noisy log lines that consume context without providing value:

-jsonPayload.fields.message="Found log(s) in index range"
-jsonPayload.fields.message="Dispatching get_public_key"
NOT "Instantiated AWS signer"
-jsonPayload.fields.message="Ingesting leaf"
-jsonPayload.fields.message="Message already marked as processed in DB"
-jsonPayload.fields.message="Message destined for self, skipping"
-jsonPayload.fields.message="Message has already been delivered, marking as submitted."
-jsonPayload.fields.message="Popped OpQueue operations"
-jsonPayload.fields.message="Validator returned latest index"
-jsonPayload.fields.message="Found signed checkpoint"
-jsonPayload.fields.return="Ok(None)"
-jsonPayload.fields.message="Fast forwarded current sequence"
-jsonPayload.fields.message="Cursor can't make progress, sleeping"
-jsonPayload.fields.message="fallback_request"
-jsonPayload.fields.message="No message found in DB for leaf index"
-jsonPayload.fields.message="Processor working on message"
-jsonPayload.fields.message="Message destined for unknown domain, skipping"

Progressive Query Strategy (Token Efficiency)

Step 1: Fetch Message Field Only First

To minimize context consumption, first fetch only the message field:

gcloud logging read '[BASE_QUERY] AND "[search_term]"' --project=abacus-labs-dev --limit=30 --format='json(jsonPayload.fields.message,timestamp)' --freshness=1d

This gives you a quick overview without the full log payload.

Step 2: Get Full Context for Specific Entries

Once you identify interesting log entries, fetch full details:

gcloud logging read '[BASE_QUERY] AND "[specific_identifier]"' --project=abacus-labs-dev --limit=20 --format=json --freshness=1d
Step 3: Extract Specific Fields

When you need specific details, use jq or grep to extract:

gcloud logging read '[QUERY]' --format=json | jq '.[].jsonPayload.fields.error'

Common Query Patterns

Search by Message ID
gcloud logging read '[BASE_QUERY] AND "0x[MESSAGE_ID]"' --project=abacus-labs-dev --limit=50 --format=json --freshness=1d
Search for Errors/Warnings
gcloud logging read '[BASE_QUERY] AND severity>="WARNING"' --project=abacus-labs-dev --limit=50 --format=json --freshness=1d
Search by Chain/Domain
gcloud logging read '[BASE_QUERY] AND jsonPayload.spans.domain:"[chain_name]"' --project=abacus-labs-dev --limit=50 --format=json --freshness=1d
Search for Stuck Messages (High Retry Count)
gcloud logging read '[BASE_QUERY] AND jsonPayload.fields.num_retries>=5' --project=abacus-labs-dev --limit=30 --format=json --freshness=1d
Search for Gas Estimation Errors
gcloud logging read '[BASE_QUERY] AND "eth_estimateGas"' --project=abacus-labs-dev --limit=30 --format=json --freshness=1d
Search by App Context
gcloud logging read '[BASE_QUERY] AND jsonPayload.fields.app_context:"[APP_CONTEXT]"' --project=abacus-labs-dev --limit=30 --format=json --freshness=1d

Time Range Options

  • --freshness=1h - Last hour
  • --freshness=1d - Last day
  • --freshness=7d - Last week
  • Or use explicit timestamps in filter: timestamp>="2026-01-27T00:00:00Z"

Output Format Options

  • --format=json - Full JSON (verbose, high context)
  • --format='json(jsonPayload.fields.message,timestamp)' - Specific fields only (efficient)
  • --format='value(jsonPayload.fields.message)' - Just values, no structure

Key Log Fields to Focus On

FieldDescription
jsonPayload.fields.messageMain log message
jsonPayload.fields.errorError details
jsonPayload.spans[].domainChain involved
jsonPayload.fields.num_retriesRetry count
jsonPayload.fields.operationsPending message details
jsonPayload.span.idMessage ID in span context

Environment Variations

EnvironmentNamespaceCluster
mainnet3mainnet3hyperlane-mainnet
testnet4testnet4hyperlane-mainnet

Tips

  1. Always start specific - Search for exact message IDs or error patterns first
  2. Use noise filters - The base logs are very noisy; always filter
  3. Limit results - Use --limit to avoid overwhelming context
  4. Progressive detail - Start with message field only, expand as needed
  5. Time bound queries - Use --freshness or timestamp filters
  6. Pipe to grep/jq - Post-process large results locally

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