did skillA
did is agent-read markdown (skill) from ericluo04/claude-academic-workflow: Design, estimate, validate, and write up a difference-in-differences analysis, using the post-2018 heterogeneity-robust toolkit with an explicit statement of which parallel-trends assumption is imposed. TRIGGER on "difference-in-differences", "DiD", "TWFE", "event study", "staggered adoption", "parallel trends", "pre-trends", "Callaway-Sant'Anna", "HonestDiD", "triple differences", "Poisson DiD", "nonlinear DiD", or any panel or repeated-cross-section setting where units become treated over time.
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 ericluo04/claude-academic-workflow/did@git:20260828.039723amdr add ericluo04/claude-academic-workflow/did@sha256:f6ef4280d7688a22Pin 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_daiothzdmm3aa3qs)
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Versions
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260828.039723a latest | 2026-08-28 | 039723a | 46,762 B | A | view · diff |
| git:20260826.ef24590 | 2026-08-26 | ef24590 | 47,635 B | A | view · diff |
| git:20260826.f58b16a | 2026-08-26 | f58b16a | 31,027 B | A | view · diff |
| git:20260805.24429e2 | 2026-08-05 | 24429e2 | 21,366 B | A | view · diff |
| git:20260805.0f0e26e | 2026-08-05 | 0f0e26e | 21,367 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 (46762 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
ericluo04/claude-academic-workflow · 13 stars · license NOASSERTION · pushed 2026-09-06 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_daiothzdmm3aa3qs GET https://markdownregistry.com/api/v1/resolve?ref=ericluo04/claude-academic-workflow/did GET https://markdownregistry.com/api/v1/blob/f6ef4280d7688a2257973d0b13632dd4906cdddd6426cd75887bca21c1ab8f97