bidirectional-differential SKILL.md skillA
bidirectional-differential from jszmajda/lid is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add jszmajda/lid/bidirectional-differential@git:20260529.8273053Pins git:20260529.8273053 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- jszmajda/lid
- Path
plugins/lid-experimental/skills/bidirectional-differential/SKILL.md- Versions recorded
- 3
- Latest version
- git:20260529.8273053, committed May 29, 2026
- First version recorded
- Apr 25, 2026
- Size
- 11,589 bytes
- Repository stars
- 112
- License
- MIT
Audit coherence across an arrow of intent by running two parallel fresh Claude sessions — one reconstructs code from a single EARS, the other reconstructs the EARS from stripped code — then classifies the drift between them. Use when the user invokes /differential-audit, asks to audit EARS-to-code drift for a feature or segment, wants a differential round-trip on a specific spec, or reaches Phase 6 code-complete in linked-intent-dev with arrow-maintenance overlay present and a touched-EARS set…
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
# Bidirectional Differential This skill runs a bidirectional differential audit on EARS↔code pairs. The audit is **advisory** — findings concentrate human review on specific cases, and acting on findings is always user-judged. When the audit surfaces drift, the recommended repair path walks the whole arrow: validate intent with the user, then cascade EARS → Tests → Code. ## When to act **Command mode** — user invokes `/differential-audit`: - No arguments → open the scoping conversation (see §Scoping). - One or more EARS IDs as arguments → audit them directly with configured defaults; skip the scoping conversation. **Ambient mode** — at linked-intent-dev's Phase 6 boundary (code is complete for a change) in a project where arrow-maintenance's overlay exists and ambient triggering is not disabled. Emit **one batched prompt** listing every EARS the change touched, offering `all`, `none`, a comma-separated subset, or `skip-arrow`. If ambient is disabled in the project's `CLAUDE.md` (see §Configuration), do not fire. Ambient mode is advisory: declining, skipping, or any classification outcome MUST NOT block Phase 6 completion. ## Hard precondition — arrow-maintenance overlay …
Read the whole file at its exact version.
How to install
mdr add jszmajda/lid/bidirectional-differential@sha256:8d10cbc26d21381fThe line at the top of this page pins the label git:20260529.8273053, 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_bkiu2icp73ags3b7)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between Apr 25, 2026 and May 29, 2026, about one every 17 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260529.8273053 latest | 2026-05-29 | 8273053 | 11,589 B | A | view · diff |
| git:20260514.1eedf56 | 2026-05-14 | 1eedf56 | 11,536 B | A | view · diff |
| git:20260425.b64c439 | 2026-04-25 | b64c439 | 11,535 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 (11589 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
jszmajda/lid · 112 stars · license MIT · pushed 2026-10-14 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_bkiu2icp73ags3b7 GET https://markdownregistry.com/api/v1/resolve?ref=jszmajda/lid/bidirectional-differential GET https://markdownregistry.com/api/v1/blob/8d10cbc26d21381f125b2bef89a6a9d80514b59e1fcdb08c8aee7ebb650833fe
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.