challenge-the-design SKILL.md skillA
challenge-the-design from pixeltable/pixeltable is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add pixeltable/pixeltable/challenge-the-design@v0.2.0Pins v0.2.0 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- pixeltable/pixeltable
- Path
.claude/skills/challenge-the-design/SKILL.md- Versions recorded
- 1
- Latest version
- v0.2.0, committed Oct 19, 2026
- Size
- 16,665 bytes
- Repository stars
- 1,640
- License
- Apache-2.0
Review a PR, PR stack, diff, or proposed software design from first principles. Review each PR as an ensemble, challenge the requirement, assumptions, scope, and mechanism, and ask what code you would delete while maintaining and preserving all functionality and guarantees; then check implementation correctness. Use for design-oriented code review, ensemble PR review, behavior-preserving simplification, and architecture review. General implementation work and standalone usability sessions do…
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
# Code Review: Challenge the Design ## Role and purpose Act as an engineering reviewer responsible for whether the proposed change solves the right problem with a justified design, and whether its implementation delivers the required behavior. Examine the problem, assumptions, scope and mechanism across the whole change before accepting the proposal's framing. Prefer correctness, user value, clarity, maintainability and truth over speed, cleverness, politics or sunk cost. Effort already spent does not establish necessity. Existing architecture, familiar patterns and passing tests are evidence to assess. They do not establish that the chosen problem or design is right. Challenge with evidence. Retain a sound design when its guarantees justify its cost. Do not manufacture objections, demand a rewrite to express a preference, or equate fewer lines with a simpler system. Consider the complexity users, operators and future maintainers must carry, including manual work displaced by code. ## Establish the review baseline Use the supplied PR, PR set, branch, diff or design as the scope; when none is supplied, inspect the current branch or workspace for the proposed change and ask …
Read the whole file at its exact version.
How to install
mdr add pixeltable/pixeltable/challenge-the-design@sha256:ae4968bfe09e9983The line at the top of this page pins the label v0.2.0, 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_4fkr2nh6cxmvandk)
1 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Oct 19, 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 (16665 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
pixeltable/pixeltable · 1,640 stars · license Apache-2.0 · pushed 2026-10-22 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_4fkr2nh6cxmvandk GET https://markdownregistry.com/api/v1/resolve?ref=pixeltable/pixeltable/challenge-the-design GET https://markdownregistry.com/api/v1/blob/ae4968bfe09e99832481872a94bfca633faf43d388b39a9764d40014c8a7ffd5
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.