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Agent skill

Specialist Testid Inserter

by HoangNguyen0403 in HoangNguyen0403/agent-skills-standard

Inserts stable test ids into production components for each selector gap named by a test plan, following the per-framework insertion policy and never renaming existing ids.

MITAuto-check passedTesting & QA

Install Specialist Testid Inserter

skills CLI
$ npx skills add HoangNguyen0403/agent-skills-standard --skill specialist-testid-inserter -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install HoangNguyen0403/agent-skills-standard specialist-testid-inserter --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/HoangNguyen0403/agent-skills-standard.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/specialists/specialist-testid-inserter .claude/skills/specialist-testid-inserter && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
specialist-testid-inserter
GitHub stars
572
Token cost
~713 tokens
SKILL.md length
307 words
Files
2
Skills in repo
211
Repo updated
First seen
Licence
MIT

At a glance

Inserts stable test ids into production components for each selector gap named by a test plan, following the per-framework insertion policy and never renaming existing ids.

  • Works in 5 steps: Parse gaps into -- ids (e.g.… → Locate the leaf interactive or… → Check for an existing id on that… → …
  • Page object lists selector gaps that block E2E generation
  • SKILL.md covers Priority: P1 (HIGH), Role, Budget and Steps, plus 2 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Specialist Testid Inserter is an agent skill from HoangNguyen0403/agent-skills-standard. Inserts stable test ids into production components for each selector gap named by a test plan, following the per-framework insertion policy and never renaming existing ids. Use when a test plan or page object lists selector gaps that block E2E generation.

Its SKILL.md is about 710 tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files (for example `evals/evals.json`).

It sits in Testing & QA, covering Test generation and End-to-end testing. The repository describes itself as: A collection of Agent Skills Standard and Best Practice for Programming Languages, Frameworks that help our AI Agent follow best practies on frameworks and programming laguages. The licence is MIT.

When your agent uses it

  • Page object lists selector gaps that block E2E generation
  • Tasks that involve Test generation
  • Tasks that involve End-to-end testing

Example prompts

  • “Use the specialist-testid-inserter skill to insert stable test ids into production components for each selector gap named by a test plan, following…”
  • “/specialist-testid-inserter”

Workflow steps

5 steps, taken from the first numbered list in SKILL.md.

  1. Parse gaps into -- ids (e.g. checkout-submit-button); reject any that break the naming rule.
  2. Locate the leaf interactive or assertable element for each gap; never a layout wrapper.
  3. Check for an existing id on that element; if present under another name, report SKIPPED (existing id: ) and never rename.
  4. Apply the framework snippet from insertion-policy.md (data-testid, testID, Semantics(identifier:), .accessibilityIdentifier…
  5. Run the repo's typecheck or lint on changed files; report unresolved gaps as SKIPPED.

What it can do on your machine

Read from SKILL.md and the folder at commit b529c2d. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md.

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Specialist Testid Inserter loads about 713 tokens when it runs. Until then it costs about 71 tokens; SKILL.md has 307 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~71
When it runs · the whole SKILL.md, loaded when a task matches
~713

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from HoangNguyen0403/agent-skills-standard at commit b529c2d, republished under its MIT licence (© HoangNguyen0403). 307 words, ~713 tokens.

Download SKILL.mdSave it as .claude/skills/specialist-testid-inserter/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.
name
specialist-testid-inserter
description
Inserts stable test ids into production components for each selector gap named by a test plan, following the per-framework insertion policy and never renaming existing ids. Use when a test plan or page object lists selector gaps that block E2E generation.
risk_tier
L2
metadata.internal
true

Specialist: Test-ID Inserter

Priority: P1 (HIGH)

Role

Close every SELECTOR_GAPS entry for one slug by adding the missing id to the leaf element in the production component, per quality-engineering-selector-stability.

Budget

  • One slug per invocation; at most 12 tool calls.
  • Read: the test plan's Selector Gaps, the page object's gap list, and one component file per gap.
  • Write: only the component file that owns each gap; one attribute per gap; no other edits.
  • Interactive mode: return APPROVAL: required with every file before writing; write only after approval.
  • Emit APPROVAL: granted once the operator approves the file list, APPROVAL: not_needed when no production file changes.
  • Autonomous mode: write only when the packet carries approved_production_edits: true; otherwise return APPROVAL: required with the file list and no edits.
  • No production logic changes, no styling, no Git, no sub-agents.
  • Return BLOCKED when a gap names an element that cannot be located in any component, or when the framework has no insertion snippet.

Steps

  1. Parse gaps into <screen>-<element>-<role> ids (e.g. checkout-submit-button); reject any that break the naming rule.
  2. Locate the leaf interactive or assertable element for each gap; never a layout wrapper.
  3. Check for an existing id on that element; if present under another name, report SKIPPED (existing id: <name>) and never rename.
  4. Apply the framework snippet from insertion-policy.md (data-testid, testID, Semantics(identifier:), .accessibilityIdentifier, Modifier.testTag).
  5. Run the repo's typecheck or lint on changed files; report unresolved gaps as SKIPPED.

Output

text
INSERTED: [id -> file:line, ...]
SKIPPED: [id (reason), ...]
FILES: [path, ...]
APPROVAL: required | granted | not_needed
CHECK: CLEAN | FAILED
BLOCKED: [reason, if any]

Anti-Patterns

  • Renaming an existing id to match the convention: ids are a public contract; report and skip.
  • Adding ids to wrappers "so the whole block is reachable".
  • Using accessibilityLabel or contentDescription as the test id.
  • Tagging by visible text or a CSS path as a fallback when no leaf element can be located: that is BLOCKED, not an insertion.
  • Writing to production files in autonomous mode without approved_production_edits: true.

© HoangNguyen0403, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 1 other file in skills/specialists/specialist-testid-inserter of HoangNguyen0403/agent-skills-standard.

  • SKILL.md
  • evals/evals.json

Open the folder on GitHubat commit b529c2d

Compare with similar skills

Specialist Testid Inserter next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Specialist Testid Inserter compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Specialist Testid Inserter this skillHoangNguyen0403/agent-skills-standard572—~713Automated safety check: PassMIT
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E2E Test ThinkerUniClipboard/UniClipboard1.9k—~1.7kAutomated safety check: PassAGPL-3.0
Migrate E2E To Integrationopenshift/oc-mirror124—~1.5kAutomated safety check: PassApache-2.0
Verifying ChangesMr-Quin/danmaku-anywhere547—~1.1kAutomated safety check: PassCustom licence
Bmad Testarch Automatebmad-code-org/bmad-method-test-architecture-enterprise105—~1.5kAutomated safety check: PassCustom licence

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Categories

Questions about Specialist Testid Inserter

What does Specialist Testid Inserter do?

Inserts stable test ids into production components for each selector gap named by a test plan, following the per-framework insertion policy and never renaming existing ids. Specialist Testid Inserter is an agent skill from HoangNguyen0403/agent-skills-standard. Inserts stable test ids into production components for each selector gap named by a test plan, following the per-framework insertion policy and never renaming existing ids.

When should I use Specialist Testid Inserter?

Specialist Testid Inserter fits situations like: page object lists selector gaps that block E2E generation; tasks that involve Test generation; tasks that involve End-to-end testing.

How do I install Specialist Testid Inserter in Claude Code?

Run `npx skills add HoangNguyen0403/agent-skills-standard --skill specialist-testid-inserter -a claude-code`. Or copy the skill folder (skills/specialists/specialist-testid-inserter in HoangNguyen0403/agent-skills-standard) into .claude/skills/specialist-testid-inserter in your project. Claude Code loads it when a task matches its description.

How do I install Specialist Testid Inserter in Codex?

Run `npx skills add HoangNguyen0403/agent-skills-standard --skill specialist-testid-inserter -a codex`. Or copy the skill folder (skills/specialists/specialist-testid-inserter in HoangNguyen0403/agent-skills-standard) into .agents/skills/specialist-testid-inserter in your project. Codex loads it when a task matches its description.

Can I use Specialist Testid Inserter in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add HoangNguyen0403/agent-skills-standard --skill specialist-testid-inserter -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/specialist-testid-inserter, .gemini/skills/specialist-testid-inserter, .github/skills/specialist-testid-inserter and .opencode/skills/specialist-testid-inserter in your project.

What does Specialist Testid Inserter need to run?

SKILL.md names no scripts, command-line tools or credentials: Specialist Testid Inserter is instructions for the agent only.

Does Specialist Testid Inserter access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Specialist Testid Inserter safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Specialist Testid Inserter use?

Specialist Testid Inserter is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Specialist Testid Inserter use?

About 713 tokens (SKILL.md is roughly 2.9k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Specialist Testid Inserter?

Skills that share tags, products or a category with Specialist Testid Inserter: Add E2E Test Suite (crowdin/crowdin-cli, 320 stars), E2E Test Thinker (UniClipboard/UniClipboard, 1.9k stars), Migrate E2E To Integration (openshift/oc-mirror, 124 stars) and Verifying Changes (Mr-Quin/danmaku-anywhere, 547 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Specialist Testid Inserter?

HoangNguyen0403 (a GitHub user) maintains it in HoangNguyen0403/agent-skills-standard, which has 572 GitHub stars. The repository holds 211 skills in this directory. The repository was last updated on October 9, 2026.

Source: HoangNguyen0403/agent-skills-standard on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.