datahub-verified-remediation

datahub-verified-remediation is a skill for Claude Code from Marc-Dvci/praxis-datahub. It costs 140 tokens per session (2,883 once invoked), scanned A, original, Apache-2.0.

A guided workflow for fixing downstream data transformations after an upstream data schema changes. A schema is the set of field names and types that describe stored data.

In plain words
What is it for?
It is for investigating schema drift, generating a mergeable remediation change, and verifying that change with lineage and field-level evidence.
Why use it?
It helps prevent unsupported fixes by requiring evidence that the changed field is actually used downstream.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter. Also seen: mentions Claude Code; mentions Codex; mentions Gemini CLI.

Good fit It is for investigating schema drift, generating a mergeable remediation change, and verifying that change with lineage and field-level evidence.

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Install with agentmods
npx agentmods add skills/marc-dvci/praxis-datahub/datahub-verified-remediation
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.

Any agent
npx skills add Marc-Dvci/praxis-datahub --skill datahub-verified-remediation
Clone the repo
git clone --depth 1 https://github.com/Marc-Dvci/praxis-datahub

Made for: Claude Code.

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 datahub-verified-remediation

README.md
[![agentmods](https://agentmods.dev/badge/skills/marc-dvci/praxis-datahub/datahub-verified-remediation/github.svg)](https://agentmods.dev/skills/marc-dvci/praxis-datahub/datahub-verified-remediation)
Your own site
<a href="https://agentmods.dev/skills/marc-dvci/praxis-datahub/datahub-verified-remediation"><img src="https://agentmods.dev/badge/skills/marc-dvci/praxis-datahub/datahub-verified-remediation/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for datahub-verified-remediation

Your own site · 80×15
<a href="https://agentmods.dev/skills/marc-dvci/praxis-datahub/datahub-verified-remediation"><img src="https://agentmods.dev/badge/skills/marc-dvci/praxis-datahub/datahub-verified-remediation.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 140 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,883 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 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 $0.00140 $0.02883
Opus 5 $0.00070 $0.01442
Sonnet 5 $0.00028 $0.00577
Haiku 4.5 $0.00014 $0.00288

Measured 12d ago against content hash 36df01ebe01c, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

datahub-verified-remediation 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 12d 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.

contrib/skills/datahub-verified-remediation/SKILL.md · 279 lines

How it starts

The opening of the file, as written. The whole thing — 279 lines — stays where its author put it; the contents beside it link to each section on GitHub.

DataHub Verified Remediation

You are an expert data reliability engineer. Your role is to take one schema-drift incident from "something changed upstream" to a proof-carrying change set a data team would actually merge — and to refuse to hand over anything you cannot evidence.

The rule that governs this whole skill: entity lineage tells you what might be affected; only a column-level field path proves this specific field is still consumed. Never propose a code change on entity lineage alone.


Multi-Agent Compatibility

This skill is designed to work across multiple coding agents (Claude Code, Cursor, Codex, Copilot, Gemini CLI, Windsurf, and others).

What works everywhere:

  • The full evidence → generate → verify → human-gate workflow
  • DataHub reads via MCP tools or the DataHub CLI
  • Remediation via the Praxis MCP server or its CLI

Claude Code-specific features (other agents can safely ignore these):

  • allowed-tools in the YAML frontmatter above

Reference file paths: Skill-specific references are in references/ and templates in templates/; both ship with this skill and resolve wherever it is installed. Paths under ../shared-references/ refer to the shared library of the upstream datahub-skills repository and resolve only once this skill is installed there — this skill never requires them, so nothing below breaks without them.


Not This Skill

If the user wants to... Use this instead
Trace dependencies or map a pipeline, with no code change /datahub-lineage
Search for entities, or answer "who owns X?" /datahub-search
Add or update descriptions, tags, owners /datahub-enrich
Create assertions, run quality checks, manage incidents /datahub-quality

Key boundary: Lineage explains impact. This skill repairs it, and gates the repair on verification and a named human. If the user only wants to understand the blast radius, hand off to /datahub-lineage and stop.

Read the full file on GitHub · 279 lines

Files

What ships with it

4 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 12d ago First seen · 279 lines · 140 tokens per session scan A 36df01ebe01c

Subscribe to this mod's changes

datahub-verified-remediation is a skill published in the GitHub repository Marc-Dvci/praxis-datahub (0 stars, last pushed 1mo ago), licensed Apache-2.0. It adds 140 tokens to every session and 2,883 once invoked, about $0.0007 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.

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