json-diff SKILL.md skillA
json-diff from lethe044/agentskill-kit is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add lethe044/agentskill-kit/json-diff@v1.0.0Pins v1.0.0 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- lethe044/agentskill-kit
- Path
skills/json-diff/SKILL.md- Versions recorded
- 1
- Latest version
- v1.0.0, committed Oct 26, 2026
- Size
- 1,500 bytes
- Repository stars
- 48
- License
- MIT
Compares two JSON files structurally and lists added, removed and changed values with their full paths. Use when the user asks what changed between two API responses, config files, fixtures or package manifests.
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
# JSON diff A structural comparison that ignores key order and formatting, which a plain text diff cannot do. ## When to use - Two API responses should be the same but a test fails. - A config or lock file changed and the user wants to know exactly which values moved. - Comparing a fixture with the output of the code that is supposed to produce it. ## How to run ```bash python scripts/json_diff.py old.json new.json ``` ## Output JSON with `identical` (boolean), `count` and `changes`. Every change has a `path` (for example `users[1].email`), a `change` of `added`, `removed` or `changed`, and the `old` and `new` values where they apply. The exit code is 1 when the files differ, 0 when they match. ## Reading the result 1. If `identical` is true, say so and stop. 2. Group the changes by the first path segment so the user sees which area moved. 3. Call out type changes (for example a number that became a string), they cause the subtle bugs. 4. Arrays are compared by position. If order is not meaningful, tell the user the diff may be noisy. ## Errors A missing file exits with code 2. Invalid JSON exits with code 3 and names the file.
Read the whole file at its exact version.
How to install
mdr add lethe044/agentskill-kit/json-diff@sha256:f8266ad1497f3734The line at the top of this page pins the label v1.0.0, 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_phdxeg3oixnmyxlh)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Oct 26, 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 (1500 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
lethe044/agentskill-kit · 48 stars · license MIT · pushed 2026-10-26 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_phdxeg3oixnmyxlh GET https://markdownregistry.com/api/v1/resolve?ref=lethe044/agentskill-kit/json-diff GET https://markdownregistry.com/api/v1/blob/f8266ad1497f3734f8ba91a01a0c221ce7be7e5871393e693018fb85ae14ec65
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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