Locator Healer Agent

Locator Healer Agent is a skill for Claude Code, Codex from anhtester/antigravity-testing-kit. It costs 27 tokens per session (587 once invoked), scanned A, original, MIT.

A tool for repairing broken locators in UI automation tests. A locator is the selector a test uses to find an element on a web page or in an app.

In plain words
What is it for?
Use it to inspect the current page, find a replacement locator, update the relevant test code, and rerun the test to check the fix.
Why use it?
It addresses test failures caused by changed page structure, missing elements, detached elements, or selectors that now match the wrong element.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/anhtester/antigravity-testing-kit/locator_healer_agent
Any agent
npx skills add anhtester/antigravity-testing-kit --skill locator_healer_agent
Clone the repo
git clone --depth 1 https://github.com/anhtester/antigravity-testing-kit

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for Locator Healer Agent

README.md
[![agentmods](https://agentmods.dev/badge/skills/anhtester/antigravity-testing-kit/locator_healer_agent.svg)](https://agentmods.dev/skills/anhtester/antigravity-testing-kit/locator_healer_agent)
Your own site
<a href="https://agentmods.dev/skills/anhtester/antigravity-testing-kit/locator_healer_agent"><img src="https://agentmods.dev/badge/skills/anhtester/antigravity-testing-kit/locator_healer_agent.svg" alt="Measured on agentmods" height="20"></a>
Per session 27 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 587 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00027 $0.00587
Opus 5 $0.00014 $0.00293
Sonnet 5 $0.00005 $0.00117
Haiku 4.5 $0.00003 $0.00059

Measured 6d ago against content hash 92bfaa22676b, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

Locator Healer Agent scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 6d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

Origin

Copies of this mod

2 near-identical copies found in the catalogue:

.agent/skills/locator_healer_agent/SKILL.md · 99 lines

How it starts

The opening of the file, as written. The whole thing — 99 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Locator Healer Agent

Purpose: Automatically repair broken locators when automation tests fail.


When to Use

Use this skill when:

  • A test fails with "element not found" or "element detached" errors
  • UI has changed and existing locators no longer work
  • After a frontend deployment that modifies DOM structure

Responsibilities

When a locator fails:

  1. Inspect current DOM or UI hierarchy
  2. Compare old locator with current page structure
  3. Identify updated attributes
  4. Generate a replacement locator
  5. Re-run test to verify the fix

Detection Strategy

Locator is considered broken when:

  • Element not found (NoSuchElementException / TimeoutError)
  • Element detached from DOM
  • Selector matches zero elements
  • Selector matches wrong element (different text/position)

Healing Workflow

Step 1: Analyze the Error

  • Read error log to identify which locator failed
  • Identify the Page Object file and line number

Step 2: Inspect Current DOM

  • Open the page using MCP tools
  • Navigate to the same state as the failing test
  • Inspect the target area in DOM

Step 3: Find Alternative Locator

Try the following in priority order:

  1. Accessibility attributes (aria-label, role)
  2. data-testid / data-test
  3. id (if stable, not auto-generated)
  4. Semantic locator (Playwright getByRole, getByLabel)
  5. css selector (stable attributes)
  6. xpath (relative, not positional)

Step 4: Validate & Replace

  • Verify the new locator matches exactly one element
  • Verify the element is the correct one (text, position, behavior)
  • Replace the broken locator in the Page Object class
  • Re-run the test

Difference from Smart Locator Agent

Aspect Locator Healer Smart Locator
Trigger Test failure (reactive) New element (proactive)
Input Broken locator + error log HTML/DOM element
Goal Fix existing locator Generate new locator
Workflow Error → Inspect → Replace → Verify Inspect → Generate → Validate

Read the full file on GitHub · 99 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 6d ago First seen · 99 lines · 27 tokens per session scan A 92bfaa22676b

Subscribe to this mod's changes

Locator Healer Agent is a skill published in the GitHub repository anhtester/antigravity-testing-kit (132 stars, last pushed 1mo ago), licensed MIT. It adds 27 tokens to every session and 587 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.