opik-explain SKILL.md skillA
opik-explain from comet-ml/opik-claude-code-plugin is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add comet-ml/opik-claude-code-plugin/opik-explain@git:20260917.109a551Pins git:20260917.109a551 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- comet-ml/opik-claude-code-plugin
- Path
skills/opik-explain/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260917.109a551, committed Sep 17, 2026
- Size
- 9,697 bytes
- Repository stars
- 25
- License
- Apache-2.0
Root-cause a specific Opik trace, or a pattern across traces, and return a grounded explanation. Uses the hosted Opik MCP when it is connected, and falls back to SDK scripting otherwise. Returns the root cause, the evidence spans as clickable Opik UI links, and one suggested next step. Use for "why did this trace fail", "explain this trace", "debug this trace", "why is my agent slow or wrong". Not for adding tracing to an app (use the instrument skill) or for changing code.
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
# Explain — Root-Cause an Opik Trace and Ground It in the Code **Definition of done:** a grounded root cause for the requested trace (or pattern), tied to **specific evidence spans** and paired with **exactly one** suggested next step. "Grounded" means the explanation names the failing/anomalous span and connects it to the code or data that produced it — not a restatement of the trace. If the target can't be fetched or read, stop at the **first** genuine blocker and return one concrete next step. A trace dump is not an explanation. Operate: **investigate over the real trace data, reason against the repo, commit to a single most-likely root cause with its evidence — and change no code.** This skill is read-only by design. ## Inputs The entry point is `/opik-explain <trace-id>` (one trace) or `/opik-explain <describe the behavior>` (a pattern to find and explain). Infer the rest; treat these as **optional overrides**: - project name (default: inferred from config/repo) · time window for a pattern (default: recent) · a known-good trace to compare against. Ask only at a genuine, non-inferable blocker (see **Blockers**). ## Activation — the only in-scope work …
Read the whole file at its exact version.
How to install
mdr add comet-ml/opik-claude-code-plugin/opik-explain@sha256:e149d79d07f5ed6bThe line at the top of this page pins the label git:20260917.109a551, 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_a2seqrrx5icmgadg)
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Versions
The registry has recorded 1 version of this file, committed on Sep 17, 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 (9697 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
comet-ml/opik-claude-code-plugin · 25 stars · license Apache-2.0 · pushed 2026-10-22 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_a2seqrrx5icmgadg GET https://markdownregistry.com/api/v1/resolve?ref=comet-ml/opik-claude-code-plugin/opik-explain GET https://markdownregistry.com/api/v1/blob/e149d79d07f5ed6ba45b2bb0ae5572dde8a79d21770120d706694d624e1a6887
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.