data-cleanup

data-cleanup is a skill for Claude Code from mondaycom/mcp. It costs 131 tokens per session (5,584 once invoked), scanned A, original, MIT.

A workflow for checking and cleaning messy customer-relationship data, such as contacts, leads, and deals. A CRM is a system for managing those business relationships and sales records.

In plain words
What is it for?
Use it to assess a CRM board, find data gaps and stalled deals, normalize phone numbers and emails, and fill selected ownership or sales fields.
Why use it?
It identifies missing or stale information and can apply selected bulk fixes after you choose what to change.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter. Also seen: names the AskUserQuestion tool.

Part of the monday-crm plugin — 9 skills shipped together

Good fit Use it to assess a CRM board, find data gaps and stalled deals, normalize phone numbers and emails, and fill selected ownership or sales fields.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/mondaycom/mcp/data-cleanup
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 mondaycom/mcp --skill data-cleanup
Clone the repo
git clone --depth 1 https://github.com/mondaycom/mcp

Made for: Claude Code.

Or install monday-crm, the plugin that ships this one along with the rest of its 9 skills.

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 data-cleanup

README.md
[![agentmods](https://agentmods.dev/badge/skills/mondaycom/mcp/data-cleanup/github.svg)](https://agentmods.dev/skills/mondaycom/mcp/data-cleanup)
Your own site
<a href="https://agentmods.dev/skills/mondaycom/mcp/data-cleanup"><img src="https://agentmods.dev/badge/skills/mondaycom/mcp/data-cleanup/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 data-cleanup

Your own site · 80×15
<a href="https://agentmods.dev/skills/mondaycom/mcp/data-cleanup"><img src="https://agentmods.dev/badge/skills/mondaycom/mcp/data-cleanup.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 131 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 5,584 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. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 3 findings, up to high

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • high Prompt Injection · line 23
    Hidden instructions were detected in comments or invisible text. These could contain malicious directives. Manual review is recommended.
    Fix: Audit all comments and invisible characters. Remove any instructions that direct the agent to perform unauthorized actions. Use plain, reviewable content.
  • high Rogue Agent · line 25
    Skill modifies its own code, configuration, or behavior at runtime. Self-modification enables an agent to escalate privileges, disable safety constraints, or install persistent backdoors.
    Fix: Prevent the skill from modifying its own code, SKILL.md, or configuration files. Treat skill files as read-only at runtime.
  • high Prompt Injection · line 215
    Hidden instructions were detected in comments or invisible text. These could contain malicious directives. Manual review is recommended.
    Fix: Audit all comments and invisible characters. Remove any instructions that direct the agent to perform unauthorized actions. Use plain, reviewable content.
How audits are shown
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 $0.00131 $0.05584
Opus 5.5 $0.00052 $0.02234
Sonnet 5.5 $0.00026 $0.01117
Haiku 4.5 $0.00013 $0.00558

Measured 1mo ago against content hash a839a0bba817, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

data-cleanup 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 1mo 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/monday-crm/skills/data-cleanup/SKILL.md · 357 lines

How it starts

The opening of the file, as written. The whole thing — 357 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Data Cleanup

Two jobs in one skill for the recurring "my CRM is messy" pain (Sidekick's #1 negative-sentiment JTBD):

  • Health check (report-only): a scored structural audit of a CRM board — missing-data patterns, stalled groups, abandoned columns, automation gaps, and a 0–100 data-quality score — published as a diagnosis doc. No writes.
  • Cleanup (fix): audit the board for data gaps, let the user pick which to fix, then run a bounded, idempotent write loop.

Flow (report): Trigger → Gather → Score (5 strands) → Publish diagnosis doc → offer to fix. Flow (fix): Trigger → Audit → User picks gaps → Plan writes → Execute (bounded, idempotent) → Summary.

Input

  • Optional: board name/ID via argument.
  • Optional: pre-declared mode (Default / Silent / Proactive).

Output

  • α (default): Bounded write loop on the chosen board. Normalizes phone/country/email; can also batch-set owner / source / last-touch / stage when the user explicitly picks those gap types and signals are clean. A Hygiene fix — <Mon DD> doc lists every change with Generated by Claude footer + <!-- claude-skill-id: data-cleanup -->.
  • β (opt-in): A "before/after" snapshot doc (preserves the prior state for ~30 days, in case a pass over-corrected). User is asked at Step 4.
  • Proactive extension: Out of scope — data-cleanup is already a write skill; proactive doesn't change its behavior. Default mode + batched confirm is the only write surface.

Knowledge

  • Gap taxonomy + audit rules (§ Step 3).
  • Normalization recipes (§ Step 5).
  • Shared artifact conventions (§ Shared patterns).

Tools (MCP)

  • get_user_context, list_workspaces, search, get_board_info, get_column_type_info, get_board_items_page, board_insights — Gather.
  • list_users_and_teams — enumerate users for bulk-assign owner step.
  • change_item_column_values — the core write. Loop with bounded concurrency.
  • create_doc / create_update — publish summary + before/after snapshot.
  • all_monday_api — escape hatch for column types not exposed by change_item_column_values. For country columns, use: change_multiple_column_values with column_values: {"<country_col_id>": {"countryCode": "<ISO2>", "countryName": "<name>"}}. Do not freeform the mutation type — only this shape is supported for country columns.

Read the full file on GitHub · 357 lines

Files

What ships with it

1 file 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. 1mo ago First seen · 357 lines · 131 tokens per session scan A a839a0bba817

Subscribe to this mod's changes

data-cleanup is a skill published in the GitHub repository mondaycom/mcp (433 stars, last pushed today), licensed MIT. It adds 131 tokens to every session and 5,584 once invoked, about $0.0005 per session on Opus 5.5. 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 2026-08-30.

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