privacyPolicyURL should be present for marketplace readiness.
tailtest
avansaber-inc/tailtest · v4.9.1 · Development & Workflow
Hook-powered test generation -- detects files changed during an agent turn and instructs Codex to write and run tests automatically. Zero config, 8 languages.
Is tailtest a fit?
From the plugin's manifest and HOL's scan. Anything the plugin does not declare is shown as not declared.
Works with
- Codex
- 1 skill
- Runs hooks on agent events
Before you install
- Sign-in
- Asks you to sign in when you install it
- Declared access
- Interactive, Write
- License
- MIT
Check before relying on it
- Security checks that did not finish: cisco-skill-scanner, codex-plugin-scanner. See the evidence
- 2 medium findings from the scan. See the evidence
- The publisher has not verified ownership on HOL.
What is tailtest?
tailtest is a published development & workflow plugin for AI coding agents in the codex ecosystem, developed by AvanSaber Inc. and distributed through the HOL AI plugin registry. Hook-powered test generation -- detects files changed during an agent turn and instructs Codex to write and run tests automatically. Zero config, 8 languages.
- Canonical slug
- avansaber-inc/tailtest
- Version
- v4.9.1 · updated Sep 20, 2026
- Open data
- entity.json (JSON-LD)
Trust & Reputation
Factor Analysis
Per-metric points (0–100 each) combined via a weighted average into the overall score.
Registry Snapshot
- Project link
- tailtest
- Homepage
- https://tailtest.com
- Canonical profile
- https://hol.org/registry/plugins/avansaber-inc%2Ftailtest
- Publisher verification
- No
- Marketplace source
- Unknown
- Scanner
- Broker fallback
- Security result
- Needs review
- Digest verified
- Yes
Trust & reputation
Trust & Reputation
Factor Analysis
Per-metric points (0–100 each) combined via a weighted average into the overall score.
Provenance
- Plugin root
- .
- Source repo
- https://github.com/avansaber/tailtest-codex
- Source commit
- 61132f9e6c4f…
- Publisher verified
- No
- Owner verified
- Not owner verified
Continuous scanner CI not detected
This plugin remains listed. Its overall trust score is reduced by 10% because security checks are not maintained in the source repository's CI.
Optional: maintain the scanner in the source repository's CI to receive the full trust score. Listing does not require that change.
README badge not detected
Plugin owners can add the HOL badge to the repository README from Guard Plugins. Distribution, not security evidence. It adds a 2% engagement adjustment to the overall trust score and never changes the security result.
Security Posture
See how the Trust Score is computed- Provider
- registry-broker-fallback
- Grade
- C · review
- Version
- Unknown
Findings
termsOfServiceURL should be present for marketplace readiness.
Repository snapshot does not include a lockfile.
Cisco skill scanner timed out after 60000 ms
tailtest — Frequently asked questions
- What is tailtest?
- tailtest is an AI plugin in the HOL registry. Hook-powered test generation -- detects files changed during an agent turn and instructs Codex to write and run tests automatically. Zero config, 8 languages.
- How do I install tailtest?
- Install tailtest in your harness: Codex — codex plugin marketplace add avansaber/tailtest-codex; Any agent — npx [email protected] add avansaber/tailtest-codex. Full step-by-step guidance is on the HOL plugin page.
- How do I install tailtest in Codex?
- To install tailtest in Codex, start with codex plugin marketplace add avansaber/tailtest-codex. The complete step-by-step install guide for Codex is on the HOL plugin page.
- Is tailtest free?
- Pricing for tailtest is published on its HOL plugin page when the maker schedules a launch.
- How is the Trust Score for tailtest computed?
- tailtest has a HOL Trust Score of 67 out of 100. The score is a weighted sum of six components from a static scan of the source, capped for high-severity findings and adjusted by two disclosed policies. Memberships and payments are not inputs, and a scan is not a safety guarantee. Full breakdown: https://hol.org/registry/plugins/avansaber-inc%2Ftailtest/trust
- Who publishes tailtest?
- tailtest is published by AvanSaber Inc. and listed on HOL.
- Is tailtest available now?
- tailtest availability is listed on its HOL plugin page.
Install Guidance
Install in Codex
Install through the Codex CLI plugin marketplace.
Optional: install HOL Guard for Codex first, so it can check this plugin's tools on your machine before Codex uses them.
- 1
Register the marketplace
Run in any terminal. Codex reads the marketplace entry from .agents/plugins/marketplace.json (or the legacy .claude-plugin path) in the repository. If the repository ships none, add the generated entry from the Advanced section below first.
shell - 2
Install from the Plugins browser
Open Codex, open the Plugins browser, choose the marketplace registered by the previous command, and install tailtest.
- 3
Check the marketplace is registered
This confirms the marketplace source only. Confirm the plugin itself is enabled in the Plugins browser before relying on it.
shell
Did setup work in Codex?
No setup reports for Codex yet. Self-reported by signed-in visitors. Copying a command is not counted, and most installs are never reported.
Attested installs: Fewer than 10 attested installs of this plugin in week 2026-W43, so no number is shown. Counted from opt-in HOL Guard install reports, once per machine and runtime, and never mixed with the answers above. How install reports work.
Loading reviews
Plugin Manifest
{
"name": "tailtest",
"version": "4.9.1",
"description": "Automatically generates and runs tests alongside your Codex session. Any language. No commands. No setup.",
"author": {
"name": "AvanSaber Inc.",
"email": "[email protected]",
"url": "https://avansaber.com"
},
"homepage": "https://tailtest.com",
"repository": "https://github.com/avansaber/tailtest-codex",
"license": "MIT",
"keywords": [
"testing",
"auto-test",
"codex",
"openai",
"assistant",
"framework-agnostic"
],
"hooks": "./hooks/hooks.json",
"skills": "./",
"interface": {
"displayName": "Tailtest",
"developerName": "AvanSaber Inc.",
"composerIcon": "./assets/icon.svg",
"shortDescription": "Auto-generates and runs tests on every Codex turn",
"longDescription": "Tailtest watches every file Codex edits in your session and queues it for test generation at end of turn. It writes production-shaped scenarios using the R1-R15 rule layer, runs them, and surfaces only failures. Works with Python, JavaScript/TypeScript, Java, Kotlin, C#, Go, Rust, and Ruby out of the box. Supports an adversarial test mode that biases scenarios toward breakage paths (8 categories: boundary inputs, format/injection, type confusion, concurrent state, time/locale edges, partial failures, resource exhaustion, off-by-one logic). No prompting, no commands; runs automatically as Codex works.",
"category": "Coding",
"capabilities": [
"Interactive",
"Write"
],
"websiteURL": "https://tailtest.com",
"defaultPrompt": [
"Write tests for the file I just edited",
"Run an adversarial scan on my last change",
"Show tailtest summary for this session"
],
"brandColor": "#F59E0B",
"screenshots": []
},
"registryIndexVersion": 5
}Marketplace Source
- Repo URL
- https://github.com/avansaber/tailtest-codex
- Marketplace path
- Unknown
- Source path
- plugins/avansaber/tailtest-codex
- Install policy
- AVAILABLE
Skills
1 SKILL.md file ship with this plugin. Preview, copy, or download each one, then install them with the Skills CLI.
skills/tailtest/SKILL.md
Generate test scenarios, write the test file, and run it for a specific source file using the tailtest R1-R15 rule layer. When the agent needs to (1) cover a file the Stop hook skipped, (2) regenerate tests after refactoring, (3) test a legacy file Codex did not modify this session, or (4) explicitly run tailtest on a named file.
SKILL.md content is not in this snapshot. Open the raw file to copy it from the source repository.
File Inventory
.codex-plugin/plugin.json
plugin-manifest
1,603 bytes
58ebe23df79f07ac…
AGENTS.md
file
31,645 bytes
5e9289c50ac911a8…
assets/icon.svg
asset
599 bytes
13512de6d5b5d76f…
hooks/__init__.py
file
0 bytes
e3b0c44298fc1c14…
hooks/hooks.json
file
725 bytes
bb3042fd80f5b56c…
hooks/lib/__init__.py
file
0 bytes
e3b0c44298fc1c14…
hooks/lib/api_validator.py
file
3,034 bytes
c907ebcbe2c89940…
hooks/lib/complexity_scorer.py
file
4,756 bytes
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hooks/lib/context.py
file
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627e2dcd840a275b…
hooks/lib/filter.py
file
6,957 bytes
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hooks/lib/history_manager.py
file
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hooks/lib/impact_tracer.py
file
3,736 bytes
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hooks/lib/last_failures_formatter.py
file
1,948 bytes
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hooks/lib/output_compressor.py
file
1,266 bytes
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hooks/lib/ramp_up.py
file
13,119 bytes
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hooks/lib/runners.py
file
25,255 bytes
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hooks/lib/scanner.py
file
3,933 bytes
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hooks/lib/scenario_log.py
file
2,221 bytes
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hooks/lib/session.py
file
3,150 bytes
51e5dbf1c6e21e69…
hooks/lib/style.py
file
4,874 bytes
ca84579d0823470a…
hooks/post_tool_use.py
file
6,890 bytes
e8c1e8f328e68836…
hooks/session_start.py
file
4,538 bytes
673a011b4f1465f1…
hooks/stop.py
file
6,302 bytes
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README.md
file
5,069 bytes
622cd18fb0b49570…
SECURITY.md
file
710 bytes
bd3d6eb6de4f3f53…
skills/tailtest/hunt.md
skill
2,847 bytes
f57952bff1dc19c7…
skills/tailtest/SKILL.md
skill
1,102 bytes
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skills/tailtest/summary.md
skill
789 bytes
432f6307d6278cb5…
skills/tailtest/tailtest-off.md
skill
577 bytes
d6f3827408245f3b…
skills/tailtest/tailtest-on.md
skill
424 bytes
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History, reviews, and alternatives
Launch history
No public launch record yet.
User reviews
The first substantive review can be added on this page.
Milestones and alternatives
Related alternatives
Suggested from HOL scan evidence: same category, at least one shared runtime, similar tags and contents. Paid placement and Trust Score play no part.
