principle-subtract-before-you-add skillA
principle-subtract-before-you-add is agent-read markdown (skill) from michael-denyer/pstack-claude: Apply when sequencing an addition, refactor, or rewrite. Remove dead code, redundant validators, and stub references first, then build on the simpler base..
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.
How to install
mdr add michael-denyer/pstack-claude/principle-subtract-before-you-add@git:20260907.ebb8c27mdr add michael-denyer/pstack-claude/principle-subtract-before-you-add@sha256:84bfde4d3dc16360Pin 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_rjo3yiepzso3m5jk)
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Versions
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260907.ebb8c27 latest | 2026-09-07 | ebb8c27 | 1,085 B | A | view · diff |
| git:20260822.7703e0a | 2026-08-22 | 7703e0a | 1,328 B | A | view · diff |
| git:20260715.5debf23 | 2026-07-15 | 5debf23 | 1,178 B | A | view · diff |
| git:20260604.d869e0a | 2026-06-04 | d869e0a | 1,187 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 (1085 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
michael-denyer/pstack-claude · 286 stars · license MIT · pushed 2026-09-09 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_rjo3yiepzso3m5jk GET https://markdownregistry.com/api/v1/resolve?ref=michael-denyer/pstack-claude/principle-subtract-before-you-add GET https://markdownregistry.com/api/v1/blob/84bfde4d3dc16360264e0cb944b2dfbd8d92a70624322e83b93432f8e35dc60e