log-analyzer SKILL.md skillA
log-analyzer from lethe044/agentskill-kit is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add lethe044/agentskill-kit/log-analyzer@v1.0.0Pins v1.0.0 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- lethe044/agentskill-kit
- Path
skills/log-analyzer/SKILL.md- Versions recorded
- 1
- Latest version
- v1.0.0, committed Oct 26, 2026
- Size
- 2,061 bytes
- Repository stars
- 48
- License
- MIT
Summarizes application log files by severity, time range and the most frequent error messages. Use when the user shares a log file or pasted log output and asks what went wrong, which errors repeat, or how noisy the log is.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Log analyzer
Reads plain text logs and produces a structured summary so the agent can reason about the
incident instead of scrolling through thousands of lines.
## When to use
- The user pastes a stack trace or log excerpt and asks for the root cause.
- The user asks which errors happen most often, or when problems started.
- A deploy or test run failed and a log file is available.
## How to run
```bash
python scripts/analyze_log.py --top 5 app.log
cat app.log | python scripts/analyze_log.py
```
The script reads the file given as the last argument, or standard input when no file is given.
## Output
A JSON object:
- `total_lines` and `levels`: a count per severity (`CRITICAL`, `ERROR`, `WARN`, `INFO`, `DEBUG`).
- `first_timestamp` and `last_timestamp`: the earliest and latest ISO style timestamps found, or `null`.
- `top_errors`: the most frequent error messages as `{"message", "count"}`. Numbers, hex ids and quoted
values are replaced with placeholders so that similar errors group together.
## Reading the result
1. Start with `levels`. A high ratio of `ERROR` to `INFO` points to a sustained failure, not a one-off.
…Read the whole file at its exact version.
How to install
mdr add lethe044/agentskill-kit/log-analyzer@sha256:c09d7780ebc954c1The line at the top of this page pins the label v1.0.0, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_hmbd3fm7ujnhrhf4)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Oct 26, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (2061 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
lethe044/agentskill-kit · 48 stars · license MIT · pushed 2026-10-26 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_hmbd3fm7ujnhrhf4 GET https://markdownregistry.com/api/v1/resolve?ref=lethe044/agentskill-kit/log-analyzer GET https://markdownregistry.com/api/v1/blob/c09d7780ebc954c1a69fc047d28ff095b18bc32024eb97e1c22448ca9b2ef337
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.
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