What kind of issues should I log with this tool?

You should log tool failures, timeouts, skipped steps, or any unexpected behavior encountered by a subagent that requires later review.

Where are the logs saved?

Issues are appended to a standardized log file located at ~/.claude/logs/agent-issues.jsonl for easy access and analysis.

Does it support multiple issues at once?

Yes, the skill allows you to batch multiple related issues into a single JSON array to minimize command overhead.

How does this skill affect Claude's performance?

It uses background execution and silent failure handling, meaning it records data without slowing down Claude's response time or interrupting your current task.

Subagent Issue Logger

Name: Subagent Issue Logger
Author: nathanvale

bynathanvale

•

Analytics & Monitoring

Records structured errors and warnings from Claude subagents to local logs without interrupting the developer workflow.

The log-agent-issue skill provides a robust, non-intrusive way to track the health and performance of Claude subagents. Designed with a 'fire-and-forget' philosophy, it allows subagents to pipe structured JSON payloads to a local log file in the background, ensuring that errors, tool failures, and degraded results are captured for later audit without breaking the user's hyperfocus. It automatically handles session metadata and timestamps, making it an essential utility for developers building or debugging complex multi-agent workflows.

Key Features

01Silent failure handling to prevent workflow interruptions

024 GitHub stars

03Structured JSONL output for easy parsing and observability

04Automatic injection of session IDs and timestamps

05Support for batching multiple issues in a single payload

06Fire-and-forget background logging using asynchronous execution

Use Cases

01Auditing subagent tool failures and timeouts during long-running tasks

02Collecting performance data for debugging complex multi-agent interactions

03Tracking fallback paths and degraded results in automated workflows

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add nathanvale/side-quest-marketplace-old log-agent-issue

For use in Claude.ai and ChatGPT

Key Features

01Silent failure handling to prevent workflow interruptions

024 GitHub stars

03Structured JSONL output for easy parsing and observability

04Automatic injection of session IDs and timestamps

05Support for batching multiple issues in a single payload

06Fire-and-forget background logging using asynchronous execution

Use Cases

01Auditing subagent tool failures and timeouts during long-running tasks

02Collecting performance data for debugging complex multi-agent interactions

03Tracking fallback paths and degraded results in automated workflows

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add nathanvale/side-quest-marketplace-old log-agent-issue

For use in Claude.ai and ChatGPT