debug-fe-be-integration SKILL.md skillA
This file is byte-identical to the first copy the registry indexed. Same content hash, so the same checks give both the same grade.
debug-fe-be-integration from kensaurus/skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add kensaurus/skills/debug-fe-be-integration@git:20260923.938ff43Pins git:20260923.938ff43 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- kensaurus/skills
- Path
skills/debug-fe-be-integration/SKILL.md- Versions recorded
- 5
- Latest version
- git:20260923.938ff43, committed Sep 23, 2026
- First version recorded
- Aug 20, 2026
- Size
- 13,360 bytes
- Repository stars
- 9
- License
- MIT
Diagnose and fix frontend↔backend contract failures by tracing requests, server logs, validation, auth, and responses on both sides. Use for API 4xx/5xx, mismatched payloads, or "frontend and backend disagree". One layer → debug-error.
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
# Frontend-Backend Integration Debug Skill **Degree of freedom: MIXED.** Which side is wrong `[HIGH freedom]`; trace-both-sides probes `[LOW freedom — run exactly]`. Systematic approach to debugging frontend-backend integration issues by analyzing backend logs, production errors, and source code to identify root causes and fix both sides. ## How to reason 1. **Observe** — status, payload, validation error, both logs 2. **Interpret** — FE omitted a field vs BE schema drifted vs auth/CORS 3. **Classify** — missing-param / type / 404 / 401 / 500 / CORS 4. **Severity** — 500 on a write path outranks a cosmetic 422 message ## Worked example > **Observe:** FE `GET /api/reports` → 500; BE log `ZodError: expected string, received undefined` on `year`. > **Interpret:** FE omitted `year`; BE schema required it with no default. > **Classify:** missing-param — fix FE call and add a clear BE 422/default. > **Verify:** same request returns 200 with the year bound; both sides updated. ## Self-critique before reporting - **Both sides read** — FE call and BE schema/logs, not one side guessed - **Contract named** — status + payload field, not "they disagree" …
Read the whole file at its exact version.
How to install
mdr add kensaurus/skills/debug-fe-be-integration@sha256:ff4562f67c3a0e4fThe line at the top of this page pins the label git:20260923.938ff43, 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_2jz5bmmjkwe3lurd)
3 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 Sep 23, 2026, about one every 8 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260923.938ff43 latest | 2026-09-23 | 938ff43 | 13,360 B | A | view · diff |
| git:20260923.68c095e | 2026-09-23 | 68c095e | 13,391 B | A | view · diff |
| git:20260923.cf348bd | 2026-09-23 | cf348bd | 13,495 B | A | view · diff |
| git:20260821.2a41031 | 2026-08-21 | 2a41031 | 13,092 B | A | view · diff |
| git:20260820.950107c | 2026-08-20 | 950107c | 11,952 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 (13360 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/skills · 9 stars · license MIT · pushed 2026-10-19 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_2jz5bmmjkwe3lurd GET https://markdownregistry.com/api/v1/resolve?ref=kensaurus/skills/debug-fe-be-integration GET https://markdownregistry.com/api/v1/blob/ff4562f67c3a0e4fa3325ccf16f3c65fffd6dadcfd01737c7e59e091bdcbc1fe
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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