agent-observability skillA
agent-observability is agent-read markdown (skill) from akillness/jeo-skills: Instrument LLM agents with traces, metrics, and replay. Use when an agent in production is silently failing, regressing, drifting, or burning tokens. Selects LangSmith / Langfuse / Phoenix, defines node-level spans, attaches evals to traces, and enables session replay..
Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.
What the file says
# Agent Observability ## Overview Production agents fail differently than services: bad tool calls, hallucinated arguments, runaway loops, silent quality regression. This skill picks an observability backend, instruments node-level spans, attaches evals to traces, and sets up replay — so failures are *observable*, not just guessed at. ## When to use - Agent works in dev, breaks in prod with no logs that explain why - Need to compare prompt/model changes against a baseline (eval-in-trace) - Token/latency cost is growing and you don't know which node is the culprit - A user reports a bad answer and you need to *replay* the exact session - Multiple agents/subagents — you need a single trace tree, not interleaved logs ## Platform selection | Backend | Pick when | Hosting | |---------|-----------|---------| | LangSmith | LangChain/LangGraph stack, want managed | SaaS | | Langfuse | Open-source, self-host required, multi-framework | SaaS or self-host | | Arize Phoenix | OTel-native, embed/eval drift, OSS-first | Local or self-host | Default: **Langfuse** when you need self-host, **LangSmith** when you're already on LangGraph, **Phoenix** when OTel is mandated. …
Read the whole file at its exact version.
How to install
mdr add akillness/jeo-skills/agent-observability@git:20260919.9f2a908mdr add akillness/jeo-skills/agent-observability@sha256:5d20fb8cf882f342Pin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.
[](https://markdownregistry.com/a/art_4f6f5vmsfua6wrou)
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Versions
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 (3143 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
akillness/jeo-skills · 47 stars · license none · pushed 2026-09-22 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_4f6f5vmsfua6wrou GET https://markdownregistry.com/api/v1/resolve?ref=akillness/jeo-skills/agent-observability GET https://markdownregistry.com/api/v1/blob/5d20fb8cf882f3421344affa9afa0906e80850555ea2050af05efa5719f9eaba
Your agent 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.
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