product-drift-auditor

product-drift-auditor is an agent for Claude Code from chieflatif/vibeos-plugin. It costs 56 tokens per session (1,553 once invoked), scanned A, original, no licence file.

A read-only audit agent that checks whether current work still matches the product promise, engineering principles, intended user experience, and current evidence.

In plain words
What is it for?
Use it to validate ongoing work against product and engineering standards without changing the code or other project files.
Why use it?
It helps catch project drift—when implementation gradually moves away from its original goals or relies on shortcuts and outdated information.

Agent for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: model in frontmatter.

Part of the vibeos plugin — 27 skills, 32 agents, 14 hooks shipped together

Good fit Use it to validate ongoing work against product and engineering standards without changing the code or other project files.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/chieflatif/vibeos-plugin/product-drift-auditor
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.

Clone the repo
git clone --depth 1 https://github.com/chieflatif/vibeos-plugin

Made for: Claude Code.

Or install vibeos, the plugin that ships this one along with the rest of its 27 skills, 32 agents, 14 hooks.

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 product-drift-auditor

README.md
[![agentmods](https://agentmods.dev/badge/agents/chieflatif/vibeos-plugin/product-drift-auditor.svg)](https://agentmods.dev/agents/chieflatif/vibeos-plugin/product-drift-auditor)
Your own site
<a href="https://agentmods.dev/agents/chieflatif/vibeos-plugin/product-drift-auditor"><img src="https://agentmods.dev/badge/agents/chieflatif/vibeos-plugin/product-drift-auditor.svg" alt="Measured on agentmods" height="20"></a>
Per session 56 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,553 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown 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 $0.00056 $0.01553
Opus 5 $0.00028 $0.00776
Sonnet 5 $0.00011 $0.00311
Haiku 4.5 $0.00006 $0.00155

Measured 7d ago against content hash ddd6b11dd34f, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

product-drift-auditor 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 7d 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.

plugins/vibeos/agents/product-drift-auditor.md · 151 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

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. 7d ago First seen · 151 lines · 56 tokens per session scan A ddd6b11dd34f

Subscribe to this mod's changes

product-drift-auditor is an agent published in the GitHub repository chieflatif/vibeos-plugin (2 stars, last pushed 2mo ago), with no licence file. It adds 56 tokens to every session and 1,553 once invoked, about $0.0003 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 2026-08-31.

Related

Other agents, from other repositories

reviewer

Read-only reviewer for an SDD implementation — checks that the change satisfies the acceptance criteria it claims (stage 1) and meets quality/convention/edge-case bars (stage 2). Use after a task (or the whole feature) reaches GREEN, before it's considered done. It reads the diff and the upstream artifacts and reports…

genkovich/sdd · 81 tokens

atomic-auditor

Final gate for a finished implementation. Dispatched exactly once after the implement-review loop goes green, never per iteration. Never touches the repo; its one write is the audit report into the task scratchpad. Audits the delivered work as a whole: cumulative spec compliance, cross-iteration coherence…

damusix/atomic-claude · 169 tokens

bt6-pr-auditor

Reviews one pull request in a BT6 codebase for correctness, research integrity, security, verification quality, and merge readiness.

elder-plinius/T3MP3ST · 32 tokens

Reviewer

Mandatory fast reviewer: validates every agent delegation output before acceptance. Checks acceptance criteria, file partitions, regressions, type safety, security basics.

monkilabs/opencastle · 30 tokens

security-auditor

Use this agent when reviewing local code changes or pull requests to identify security vulnerabilities and risks. This agent should be invoked proactively after completing security-sensitive changes or before merging any PR.

NeoLabHQ/context-engineering-kit · 40 tokens

reviewer-architecture

Use this agent for architecture-focused code review. Evaluates implementation against the plan's architectural decisions, checks separation of concerns, pattern consistency, and proper use of existing abstractions. Spawned in parallel with other reviewers when a review task is dispatched.

HirogaKatageri/hirokata · 56 tokens