backend-observability SKILL.md skillA
backend-observability from kensaurus/cursor-kenji is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add kensaurus/cursor-kenji/backend-observability@git:20261001.3fce9fbPins git:20261001.3fce9fb in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- kensaurus/cursor-kenji
- Path
skills/backend-observability/SKILL.md- Versions recorded
- 5
- Latest version
- git:20261001.3fce9fb, committed Oct 1, 2026
- First version recorded
- Aug 20, 2026
- Size
- 7,069 bytes
- Repository stars
- 9
- License
- MIT
Implement correlated errors, traces, and structured logs with PII redaction. Use when "add logging", "instrument this", or wiring Sentry/Langfuse. Plan-only audit → plan-error-handling. Sentry triage → debug-sentry-monitor.
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
# Observability Instrumentation **Degree of freedom: MIXED.** What to wrap and alert on `[HIGH freedom]`; correlation ids, PII redaction, and the DoD `[LOW freedom — run exactly]`. ## How to reason 1. **Observe** — which ids, logs, spans, and PII already exist 2. **Interpret** — can you pivot error ↔ trace ↔ log ↔ user from any one? 3. **Classify** — add-correlation / convert-console / redact / wrap-span / alert 4. **Severity** — uncorrelated prod 500 outranks a missing debug field ## Worked example > **Observe:** checkout 500 in Sentry has no request_id; pino logs the cart id; no LLM (Langfuse unused). > **Interpret:** cannot pivot error → logs; webhook still `console.log`s. > **Classify:** ALS request_id on logs + `Sentry.setTag`; convert console to pino; redact `Authorization`. > **Verify:** one id on the Sentry event and the log line; `beforeSend` strips the header. ## Self-critique before reporting - **Correlated** — same request/trace id on the log, Sentry, and Langfuse - **Redacted** — deny-list at the logger + `beforeSend`, not per-call hope - **Leveled** — no `console.log` in prod; handled paths are not `error` …
Read the whole file at its exact version.
How to install
mdr add kensaurus/cursor-kenji/backend-observability@sha256:040b2810e664b790The line at the top of this page pins the label git:20261001.3fce9fb, 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_n4btuairf44qx4qk)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 5 versions of this file, between Aug 20, 2026 and Oct 1, 2026, about one every 10 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261001.3fce9fb latest | 2026-10-01 | 3fce9fb | 7,069 B | A | view · diff |
| git:20260923.68c095e | 2026-09-23 | 68c095e | 7,099 B | A | view · diff |
| git:20260923.cf348bd | 2026-09-23 | cf348bd | 7,125 B | A | view · diff |
| git:20260821.2a41031 | 2026-08-21 | 2a41031 | 7,111 B | A | view · diff |
| git:20260820.950107c | 2026-08-20 | 950107c | 5,710 B | A | view |
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 (7069 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
kensaurus/cursor-kenji · 9 stars · license MIT · pushed 2026-10-19 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_n4btuairf44qx4qk GET https://markdownregistry.com/api/v1/resolve?ref=kensaurus/cursor-kenji/backend-observability GET https://markdownregistry.com/api/v1/blob/040b2810e664b7908db5f3eca2e721b3eab3189cff467c4225e12c61b87a653b
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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