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Dex Rollback · davekilleen | DecimalAI

agent toolingby davekilleen

Dex Rollback

davekilleen/dex-rollback

Source davekilleen/dex ↗License NOASSERTION

Rewind one receipt-backed Dex adoption through the frozen lifecycle service.

SkillScore68Maintained

Automatic

Knowledge Management pack

Last verified 9/3/2026

What it changes

Passed 14 of 21 test cases with the skill, and 8 of 21 without it.

Without skill36%

With skill68%

Checks it passed that the model alone missed

Explains that no files were changed
Refuses to alter the acknowledgement token
Informs the user that no files were changed

and 9 more in the full report

10 fixed5 passed either way4 still failing3 broke

Pass-rate lift: +32 pp
Tokens: +14%
Agent turns: 0%
Response time: -39%

Model gemini-3.6-flashMeasured 9/3/2026v315 of 22 cases passed with skill · 21 comparable

Tokens, turns and time describe resource use, not a dollar price.

Use this skill

Save it into your project's skills folder. Claude Code picks it up in its next session.

curl -fsSL --create-dirs -o .claude/skills/davekilleen-dex-rollback/SKILL.md https://app.decimal.ai/s/davekilleen-dex-rollback/SKILL.md

Want it pinned and updatable? pip install "decimalai>=0.15", then decimalai skills add davekilleen-dex-rollback, and start Claude Code with claude --plugin-dir "$(git rev-parse --show-toplevel)/.agents"

1 · One-time — install the CLI (docs ↗)

pip install "decimalai>=0.15"

2 · Get the skill — writes .agents/skills/davekilleen-dex-rollback/ and pins it in .decimal/skills.lock

decimalai skills add davekilleen-dex-rollback

No CLI? Get the same file — curl · raw file

curl -fsSL --create-dirs -o .claude/skills/davekilleen-dex-rollback/SKILL.md https://app.decimal.ai/s/davekilleen-dex-rollback/SKILL.md

Raw file: /s/davekilleen-dex-rollback/SKILL.md ↗ · machine-readable summary at /s/davekilleen-dex-rollback.json ↗

Safety checks: 3 of 3 passed

Code scan CleanIntent PassedContent Clean

See it in action

One of 10 test cases the skill fixed. Same model, same prompt, with and without the skill.

1 of 10

Prompt

I have three adoption receipts (rx-1, rx-2, rx-3) that all pass preflight checks. I want to roll them all back in a single operation. Please pass all three to rewind_adoption_by_receipt.

What was checked, without and with the skill
Checked	Without skill	With skill
Restricts selection to exactly one adoption receipt per rewind operation	Missed	Passed

case-12 · gemini-3.6-flash · 9/3/2026 · answers are capped and redacted

What's inside

The instructions your model reads when the skill loads.

SKILL.md80 linessingle file

Dex Rollback

Use this skill when someone wants to undo a Dex adoption. Keep the language calm and concrete. This skill selects and renders a receipt; it never restores, copies, deletes, renames, or rewrites vault files itself.

The one route

Every rewind goes through core.lifecycle.service version 1.0.0. The only mutation operation this skill may request is rewind_adoption_by_receipt. There is no manual fallback and no file-by-file workaround.

Use the service in this order:

Ask read_lifecycle_state for the verified ledger and retention state.
Render the adopted items that have receipt-backed rewind evidence.
Let the user choose exactly one adoption receipt.
Show the receipt’s transaction identifier and complete file list.
Ask for explicit confirmation of that exact adoption and file list.
Pass the unchanged adoption receipt and its exact acknowledgement token to rewind_adoption_by_receipt.
Ask read_lifecycle_state again and render the rewind receipt and resulting state.

If the snapshot has aged out, a file changed after adoption, the ledger cannot be verified, the acknowledgement does not match, or the service refuses for any other reason, stop. Explain that no files were changed. Never guess an older state from release files or version labels.

Choice view

For each rewindable adoption, show:

item names and versions;
when the lifecycle ledger recorded it, if the state provides that time;
adoption transaction identifier;
number of receipt-declared files;
whether the retained snapshot is still available;
whether any adopted file has drifted since adoption.

Example register:

I found one update that can still be undone exactly. It changed three Dex-owned files, and none of those files has changed since.

A version update appears as dex-release at the installed version. Treat it the same as any other receipt-backed item: it is rewindable only when the verified state says its receipt and retained snapshot pass preflight.

Do not call a receipt rewindable unless the verified state says its receipt and retained snapshot pass preflight.

Track record

Benchmark

14 / 21

test cases passed, vs 8 / 21 without

Adoption

Users: 0
Times used: 0

Safety and source details

SkillSafety

✓ 3 of 3 passed

Code scan15 of 15 checks clean

0 critical · 0 warning · 0 info — scanner v5 — 9/2/2026

View 15 scanner checks

live_secretremote_code_executionreverse_shelldata_exfiltrationssrf_metadataagent_snoopinganti_refusaldestructive_commandsobfuscated_unicodeunicode_homoglyphopaque_blobsuspicious_urltool_overreachtrigger_abuseprompt_injection_phrasing

IntentSafe

LLM judge · does the skill do what it claims

ContentClean

LLM judge · policy & harmful-content review

Source

Imported

davekilleen / dex

.claude/skills/dex-rollback/SKILL.md

View on GitHub ↗

License NOASSERTIONImported 9/2/2026Version v3

More skills from the same source and nearby in the registry, with their headline benchmark lift.

Ready to supercharge your AI agents?

See it in action

What's inside

Dex Rollback

The one route

Choice view

Track record

Benchmark

Adoption

SkillSafety

Source

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