fixer SKILL.md skillA

This file is byte-identical to the first copy the registry indexed. Same content hash, so the same checks give both the same grade.

fixer from p2p2sp/viber is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add p2p2sp/viber/fixer@git:20261014.ae26c4b

Pins git:20261014.ae26c4b in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
p2p2sp/viber
Path
viber/skills/fixer/SKILL.md
Versions recorded
5
Latest version
git:20261014.ae26c4b, committed Oct 14, 2026
First version recorded
Sep 30, 2026
Size
5,109 bytes
Repository stars
8
License
MIT

Traces a reported bug to its root cause and proves it with a failing test, then hands the diagnosis to the planner - it applies no fix itself. Use whenever user reports a bug and wants to fix it. Not for a fix the user asked to apply directly, without a plan.

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

# fixer

Every script run is one literal Bash line spelled as in this skill: never prefixed with an interpreter word, never assigned to a variable, never preceded by `cd`, never chained with `;`.

## The Iron Law

Three laws, in this order. None substitutes for another.

**1. Trace the entire code flow, step by step - no assumptions, no shortcuts.** Locate the entry point, follow execution line by line reading the code (never infer it), and at each step state the actual value, type or condition - never "should", "probably" or "likely". Stop at the first point where actual diverges from expected: that is the root cause, not the symptom. Confirm the divergence produces the reported symptom downstream. Symptom fixes are failure.

**2. No handoff without a failing test that reproduces the divergence.** Reading code proves what it says, never what it does. Until a test fails on the divergence found, the root cause is unconfirmed and the fix has nothing to verify it.

**3. Never apply the fix here.** Edit nothing but the reproduction test. The fix is built through `viber:planner` -> `viber:implementor`. "It is trivial" and "it is one line" are the same violation.

## The Process
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add p2p2sp/viber/fixer@sha256:3352174f2c783465

The line at the top of this page pins the label git:20261014.ae26c4b, 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.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_dq73ha4qpukojudf.svg)](https://markdownregistry.com/a/art_dq73ha4qpukojudf)

1 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 5 versions of this file, between Sep 30, 2026 and Oct 14, 2026, about one every 3 days.

versioncommittedcommitsizeaudit
git:20261014.ae26c4b latest2026-10-14 ae26c4b 5,109 BA view · diff
git:20261007.c5c19e12026-10-07 c5c19e1 4,921 BA view · diff
git:20261001.2f136d52026-10-01 2f136d5 5,248 BA view · diff
git:20260930.64c8e532026-09-30 64c8e53 5,132 BA view · diff
git:20260930.26bc2a82026-09-30 26bc2a8 4,914 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (5109 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

GitHub

p2p2sp/viber · 8 stars · license MIT · pushed 2026-10-22 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_dq73ha4qpukojudf
GET https://markdownregistry.com/api/v1/resolve?ref=p2p2sp/viber/fixer
GET https://markdownregistry.com/api/v1/blob/3352174f2c7834653fb00a333c1adea5d71a6e391c5c1fcb9e0d9970a8645de7

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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Every file in p2p2sp/viber

Other files named fixer

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