observability-contract-review SKILL.md skillA
observability-contract-review from arasz/ai-badger is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add arasz/ai-badger/observability-contract-review@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
- arasz/ai-badger
- Path
features/dotnet/skills/dotnet-workload/references/observability-contract-review/SKILL.md- Versions recorded
- 2
- Latest version
- v1.0.0, committed Sep 1, 2026
- First version recorded
- Aug 24, 2026
- Size
- 7,603 bytes
- Repository stars
- 3
- License
- MIT
Use when reviewing claims that 'all calls are instrumented': span+metrics helper diffs, tool-layer try/catch instrumentation, N/N tool-surface parity tests. Checks path coverage, not call-site presence — filtered-catch escape holes, exactly-once recording, Activity status/tag ordering, instrumentation-test honesty, CI Speed-trait blind spots, metrics-unchanged verification.
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 Contract Review Reviewing code that claims "every call is instrumented" (spans carrying status + tags, per-call counters/histograms) is about **path coverage**, not call-site presence. The gap is almost always an exception path that escapes the recording catch. Use this checklist when a diff touches an observability helper (e.g. a `ToolExecutionActivity`-style wrapper), tool-layer try/catch instrumentation, or a tool-surface parity test. ## When to use - PR adds/changes a span+metrics helper that tools wrap their bodies with. - PR claims "all N tools route through the helper" or "N/N tools answer over the wire". - PR adds an E2E `tools/list` parity test. - Any review where a metric/span contract (status, tags, counter) is an acceptance criterion. ## Checklist (verify against code, not claims) 1. **Call-site coverage is not path coverage.** Grep for helper construction (`new ToolExecutionActivity(...)`) — N sites ≠ N tools fully instrumented. Then walk every early-exit path: - Guards/validation/access-control (`RequireProjectId`, `EnsureAsync`) — **what exception type do they throw?** …
Read the whole file at its exact version.
How to install
mdr add arasz/ai-badger/observability-contract-review@sha256:a14ce4a4cfe8793aThe 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_bapeceoik56x43es)
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Versions
The registry has recorded 2 versions of this file, between Aug 24, 2026 and Sep 1, 2026, about one every 9 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| v1.0.0 latest | 2026-09-01 | 7888057 | 7,603 B | A | view · diff |
| v1.0.0 | 2026-08-24 | e268749 | 7,608 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 (7603 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
arasz/ai-badger · 3 stars · license MIT · pushed 2026-10-20 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_bapeceoik56x43es GET https://markdownregistry.com/api/v1/resolve?ref=arasz/ai-badger/observability-contract-review GET https://markdownregistry.com/api/v1/blob/a14ce4a4cfe8793a1e5a6d299a869420f82f1158c77de234aefed73317c92913
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.