recover-tier SKILL.md skillA
recover-tier from sshadows/lethal is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add sshadows/lethal/recover-tier@git:20261003.fa4847cPins git:20261003.fa4847c in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- sshadows/lethal
- Path
.claude/skills/recover-tier/SKILL.md- Versions recorded
- 5
- Latest version
- git:20261003.fa4847c, committed Oct 3, 2026
- First version recorded
- Jul 28, 2026
- Size
- 5,251 bytes
- Repository stars
- 10
- License
- MIT
Recover a LethAL tier that is quarantined or holding a stranded operation marker — recycle the environment, force-reset the lease, clear the quarantine. Use when a run refuses with "tier ... is quarantined", "container-needs-recycle", or "operation-orphaned". Publishes to and force-clears state on a live environment, so it is user-invoked only.
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
# Recover a quarantined tier A stranded mutant leaves TWO pieces of state behind, in different places, and clearing either one alone leaves the tier refusing work: | state | lives in | cleared by | |---|---|---| | durable quarantine record | `~/.lethal/quarantine/<hash>.json` (local) | `lethal clear-quarantine` | | op marker on the `LC Lease` row | the environment's DATABASE | `lethal force-reset-lease` | **An environment restart clears neither.** It kills sessions; the lease row is a table. That is exactly why design §8 makes the restart and `ForceResetLease` separate steps, and it is the mistake to expect: a restart looks like it should have been enough. ## When this applies A run refuses with one of: - `tier <server>|<instance> is quarantined (test-run: test in-flight-unknown running ...)` - `LeaseUnavailableError: container-needs-recycle: AcquireLease reported operation-orphaned twice with an UNCHANGED marker` Both usually mean a mutant did not terminate (R53's class — a negated loop-exit condition reproduces this every time) and its attempt was abandoned mid-flight. ## The safety precondition, which is the whole reason this is user-invoked …
Read the whole file at its exact version.
How to install
mdr add sshadows/lethal/recover-tier@sha256:0b79efe0a1a6231fThe line at the top of this page pins the label git:20261003.fa4847c, 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_dr724rt5rftlfsxx)
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Versions
The registry has recorded 5 versions of this file, between Jul 28, 2026 and Oct 3, 2026, about one every 17 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261003.fa4847c latest | 2026-10-03 | fa4847c | 5,251 B | A | view · diff |
| git:20261003.c44169c | 2026-10-03 | c44169c | 5,252 B | A | view · diff |
| git:20260805.d3684ff | 2026-08-05 | d3684ff | 4,995 B | A | view · diff |
| git:20260805.fd5c097 | 2026-08-05 | fd5c097 | 4,810 B | A | view · diff |
| git:20260728.0655956 | 2026-07-28 | 0655956 | 5,008 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 (5251 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
sshadows/lethal · 10 stars · license MIT · pushed 2026-11-07 · branch master
API
GET https://markdownregistry.com/api/v1/artifacts/art_dr724rt5rftlfsxx GET https://markdownregistry.com/api/v1/resolve?ref=sshadows/lethal/recover-tier GET https://markdownregistry.com/api/v1/blob/0b79efe0a1a6231f4994eb978ed553f4854c0de677e6ac9f9e61c7efb51aee91
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.