N

Neo

Code reasoning plugin for Claude Code and Codex that runs multi-agent analysis over relevant repository files and keeps a local semantic memory, promoting a lesson only after its suggestions are verified as accepted in git

parslee-ai/neo · v0.55.2 · Development & Workflow

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InstallSourceClaim this plugin
59Follow0

Trust Score

59

Security

59

Surfaces

6

What is Neo?

Neo is a published development & workflow plugin for AI coding agents in the codex ecosystem, developed by Parslee AI and distributed through the HOL AI plugin registry. Code reasoning plugin for Claude Code and Codex that runs multi-agent analysis over relevant repository files and keeps a local semantic memory, promoting a lesson only after its suggestions are verified as accepted in git

Canonical slug
parslee-ai/neo
Version
v0.55.2 · updated Oct 8, 2026

Trust & Reputation

HOL Trust Score
59

Factor Analysis

Per-metric points (0–100 each) combined via a weighted average into the overall score.

Installability
64pts
Maintenance
0pts
MCP Posture
100pts
Plugin Security
59pts
Provenance
70pts
Publisher Quality
75pts

Registry Snapshot

Publisher verification
No
Marketplace source
Unknown
Scanner
Broker fallback
Safety label
caution
Digest verified
Yes
6 bundled skills — copy or download SKILL.mdOpen skills

Trust & reputation

Trust & Reputation

HOL Trust Score
59

Factor Analysis

Per-metric points (0–100 each) combined via a weighted average into the overall score.

Installability
64pts
Maintenance
0pts
MCP Posture
100pts
Plugin Security
59pts
Provenance
70pts
Publisher Quality
75pts

Provenance

Plugin root
plugins/neo
Source repo
https://github.com/Parslee-ai/neo
Source commit
0e8026d32eac…
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.

Verified badge not detected

Add the HOL verified badge to the repository README to score +2% trust. Plugin owners can open that pull request from Guard Plugins.

Security Posture

caution
Safety label
59
Security score
0
High findings
Provider
registry-broker-fallback
Grade
F · caution
Version
Unknown
cisco-skill-scanner: unknown

Findings

mediumpublishabilitypublishability.link.missing.websiteURL

websiteURL should be present for marketplace readiness.

mediumpublishabilitypublishability.link.missing.privacyPolicyURL

privacyPolicyURL should be present for marketplace readiness.

mediumpublishabilitypublishability.link.missing.termsOfServiceURL

termsOfServiceURL should be present for marketplace readiness.

lowoperational-securitysupply-chain.lockfile-missing

Repository snapshot does not include a lockfile.

infoskill-securityskill-scan.unavailable

Cisco skill scanner timed out after 60000 ms

infoskill-securityskill-scan.unavailable

Cisco skill scanner timed out after 60000 ms

infoskill-securityskill-scan.unavailable

Cisco skill scanner timed out after 60000 ms

infoskill-securityskill-scan.unavailable

Cisco skill scanner timed out after 60000 ms

infoskill-securityskill-scan.unavailable

Cisco skill scanner timed out after 60000 ms

infoskill-securityskill-scan.unavailable

Cisco skill scanner timed out after 60000 ms

Neo — Frequently asked questions

What is Neo?
Neo is an AI plugin in the HOL registry. Code reasoning plugin for Claude Code and Codex that runs multi-agent analysis over relevant repository files and keeps a local semantic memory, promoting a lesson only after its suggestions are verified as accepted in git
How do I install Neo?
Install Neo in your harness: Codex — codex plugin marketplace add Parslee-ai/neo; Claude Code — /plugin marketplace add Parslee-ai/neo; Any agent — npx skills add Parslee-ai/neo. Full step-by-step guidance is on the HOL plugin page.
How do I install Neo in Codex?
To install Neo in Codex, start with codex plugin marketplace add Parslee-ai/neo. The complete step-by-step install guide for Codex is on the HOL plugin page.
How do I install Neo in Claude Code?
To install Neo in Claude Code, start with /plugin marketplace add Parslee-ai/neo. The complete step-by-step install guide for Claude Code is on the HOL plugin page.
Is Neo free?
Pricing for Neo is published on its HOL plugin page when the maker schedules a launch.
Who publishes Neo?
Neo is published by Parslee AI and listed on HOL.
Is Neo available now?
Neo availability is listed on its HOL plugin page.

Install Guidance

Install in Claude Code

Install through the Claude Code plugin marketplace.

Claude Code plugin docs
  1. 1

    Add the marketplace

    Run this inside a Claude Code session.

    claude code
  2. 2

    Install the plugin

    Use the plugin name and the marketplace name shown by the previous command.

    claude code
  3. 3

    Scripted alternative

    Non-interactive equivalent for scripts and CI pipelines. Add --scope project to pin the install to one repository.

    shell

Plugin Manifest

{
  "name": "neo",
  "version": "0.55.2",
  "description": "Multi-agent semantic reasoning system with persistent memory for code suggestions, architectural guidance, and optimization recommendations",
  "author": {
    "name": "Parslee AI",
    "url": "https://parslee.ai"
  },
  "homepage": "https://github.com/Parslee-ai/neo",
  "repository": "https://github.com/Parslee-ai/neo",
  "license": "Apache-2.0",
  "keywords": [
    "reasoning",
    "semantic-search",
    "multi-agent",
    "code-review",
    "optimization",
    "architecture",
    "memory",
    "patterns"
  ],
  "skills": "./",
  "interface": {
    "displayName": "Neo",
    "developerName": "Parslee AI",
    "shortDescription": "Semantic reasoning with persistent memory",
    "longDescription": "Neo is a mode-explicit reasoning helper. Codex advise skills send only explicitly curated task context: implicit directory and project-instruction discovery plus persistent fact retrieval are disabled by default. External-provider calls use Codex approval with provider and data scope disclosed. Shared memory is opt-in for advise and used by deliberate `learn` workflows with its provider and persistence effects disclosed. `agent` requires explicit workspace authority plus a host executor; Neo never executes generated shell commands. Requires the neo CLI installed locally (`pip install neo-reasoner[openai]`).",
    "category": "Productivity",
    "capabilities": [
      "Read",
      "Interactive"
    ],
    "defaultPrompt": [
      "Ask Neo to reason over a small, explicitly approved code context",
      "Have Neo review selected code without scanning the rest of the workspace"
    ]
  },
  "holManifestOrigin": "repository",
  "registryIndexVersion": 5
}

Marketplace Source

Repo URL
https://github.com/Parslee-ai/neo
Marketplace path
Unknown
Source path
plugins/neo
Install policy
Unspecified

Skills

6 SKILL.md files ship with this plugin. Preview, copy, or download each one, then install them with the Skills CLI.

Share
skills-cli

  • neo-architect

    skills/neo-architect/SKILL.md

    Get Neo's architectural guidance for design decisions. Trade-off analysis for choices like microservices vs monolith, sync vs async, and event-driven vs request-response, with optional explicitly authorized memory recall. Skip for decisions already made, style preferences, and anything settled by reading one file.

    Raw SKILL.md

  • neo-debug

    skills/neo-debug/SKILL.md

    Ask Neo to help debug intermittent, complex, or hard-to-reproduce issues. Particularly useful for race conditions, memory issues, distributed-systems bugs, and cases where the symptom is not the root cause. Skip for compile errors, straightforward tracebacks, and failures with an obvious single-file cause.

    Raw SKILL.md

  • neo-optimize

    skills/neo-optimize/SKILL.md

    Ask Neo for optimization suggestions on a function, file, or hot path. Targets algorithmic improvements, redundant work, allocation/hot-loop issues — not micro-style. Skip when nothing has been measured yet — profile first, because Neo cannot tell you where the time actually goes.

    Raw SKILL.md

  • neo-pattern

    skills/neo-pattern/SKILL.md

    Ask Neo to extract a reusable pattern from a piece of code, or to find existing patterns in the codebase that match a description. Useful for codifying conventions and finding duplicated logic. Skip for one-off code and speculative abstractions — this is the one Neo skill that writes durable memory, so a wrong lesson outlives the session.

    Raw SKILL.md

  • neo-review

    skills/neo-review/SKILL.md

    Get Neo's code review with semantic pattern matching. Focuses on security vulnerabilities, edge cases, error handling, and performance issues across the target file or module. Skip for formatting, lint-catchable issues, and single-line changes.

    Raw SKILL.md

  • neo

    skills/neo/SKILL.md

    Ask Neo for semantic reasoning and code suggestions over explicitly selected context. Use for general questions, code suggestions, or architectural guidance; persistent memory is opt-in for external-provider calls. Skip for questions answerable from the context already selected, factual lookups, and mechanical edits — each run costs 5-30s and an external-provider call.

    Raw SKILL.md

File Inventory

.codex-plugin/plugin.json

plugin-manifest

1,544 bytes

c9ead11e1c3e7a98…

skills/neo-architect/SKILL.md

skill

4,529 bytes

7941604e330b67d3…

skills/neo-debug/SKILL.md

skill

4,419 bytes

73cbd40cf62c7fbe…

skills/neo-optimize/SKILL.md

skill

4,172 bytes

6a3301b9b00491e5…

skills/neo-pattern/SKILL.md

skill

4,311 bytes

da830477aaa2a659…

skills/neo-review/SKILL.md

skill

4,102 bytes

651da5bc21bd7ff4…

skills/neo/SKILL.md

skill

7,863 bytes

b6eecc67018bbd51…