ha-automation-diff SKILL.md skillA
ha-automation-diff from gtapps/hermitd is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add gtapps/hermitd/ha-automation-diff@git:20261017.b5deacbPins git:20261017.b5deacb in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- gtapps/hermitd
- Path
plugins/hermitd-homeassistant/skills/ha-automation-diff/SKILL.md- Versions recorded
- 3
- Latest version
- git:20261017.b5deacb, committed Oct 17, 2026
- First version recorded
- Oct 2, 2026
- Size
- 2,598 bytes
- Repository stars
- 82
- License
- MIT
Report which Home Assistant automations were added, removed, edited, enabled, or disabled since the last snapshot — change memory across sessions, including UI edits that bypass this plugin. Read-only. Use when the operator asks "what changed", "what moved since last time", or to explain a regression.
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
# HA Automation Diff
## Purpose
`ha-safety-audit` catches POLICY drift at a point in time. This skill catches CHANGE drift: which automations were added, removed, edited, enabled, or disabled since the last snapshot — including edits made directly in the HA UI that bypass `ha-build-automation`. It gives the hermit a memory of "what moved" between sessions, which is what explains regressions and keeps the estate legible.
It is read-only against Home Assistant: it enumerates automations, hashes each stored config, and diffs against the previous snapshot.
## Steps
1. Run `${CLAUDE_PLUGIN_ROOT}/bin/ha-agent-lab ha automation-diff`.
2. The command writes a JSON snapshot to `.hermit/raw/snapshot-ha-automations-latest.json` (the baseline for the next run) and a markdown findings artifact under `.hermit/raw/audit-ha-automation-diff-*`, and prints one JSON object: `date`, `tracked`, `changes` (each `change`, `name`, `id`, in display order) and the `untracked` count, or `{"status":"baseline","reason":"no_prior_snapshot","date","tracked"}` on the first run.
3. Render the findings block below from it.
## Output contract
…Read the whole file at its exact version.
How to install
mdr add gtapps/hermitd/ha-automation-diff@sha256:7030f996fb8f7bedThe line at the top of this page pins the label git:20261017.b5deacb, 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_lvphmjvaxvqtgmke)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between Oct 2, 2026 and Oct 17, 2026, about one every 7 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261017.b5deacb latest | 2026-10-17 | b5deacb | 2,598 B | A | view · diff |
| git:20261017.16f0d8e | 2026-10-17 | 16f0d8e | 2,529 B | A | view · diff |
| git:20261002.2f2da1b | 2026-10-02 | 2f2da1b | 2,121 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 (2598 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
gtapps/hermitd · 82 stars · license MIT · pushed 2026-10-22 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_lvphmjvaxvqtgmke GET https://markdownregistry.com/api/v1/resolve?ref=gtapps/hermitd/ha-automation-diff GET https://markdownregistry.com/api/v1/blob/7030f996fb8f7bed6e9deb916ed57fe8c08a51b1f65ff3af76f0055e3b6e8dd1
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.