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Agent skill

Attio Upgrade Migration

by jeremylongshore in jeremylongshore/tons-of-skills-marketplace

Migrate an Attio integration through a contract-led inventory, OpenAPI and documentation diff, shadow validation, canary rollout, reconciliation, and tested rollback.

MITAuto-check passedBackend & APIs

Install Attio Upgrade Migration

skills CLI
$ npx skills add jeremylongshore/tons-of-skills-marketplace --skill attio-upgrade-migration -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install jeremylongshore/tons-of-skills-marketplace attio-upgrade-migration --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/jeremylongshore/tons-of-skills-marketplace.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/.curated/attio-upgrade-migration .claude/skills/attio-upgrade-migration && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
attio-upgrade-migration
GitHub stars
2.8k
Token cost
~1k tokens
SKILL.md length
380 words
Files
2 (incl. references)
Skills in repo
3,342
Repo updated
First seen
Licence
MIT

At a glance

Migrate an Attio integration through a contract-led inventory, OpenAPI and documentation diff, shadow validation, canary rollout, reconciliation, and tested rollback.

  • Works in 7 steps: Freeze a baseline of call sites,… → Diff each affected endpoint against… → Classify changes as compatible,… → …
  • Endpoint assumptions
  • SKILL.md covers Overview, Prerequisites, Tool Discipline and Current Contract, plus 7 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Attio Upgrade Migration is an agent skill from jeremylongshore/tons-of-skills-marketplace. Migrate an Attio integration through a contract-led inventory, OpenAPI and documentation diff, shadow validation, canary rollout, reconciliation, and tested rollback. Use when endpoint assumptions, client versions, schemas, or integration architecture must change. Trigger with "upgrade Attio integration", "Attio migration", or "Attio API contract change".

Its SKILL.md is about 1k tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files, including reference files (for example `references/official-docs.md`). Compatibility notes: Designed for Claude Code

It sits in Backend & APIs, covering Deployment, Accounting and bookkeeping and OpenAPI specifications. It works with OpenAPI. The repository describes itself as: Model-agnostic agent-skills platform with a harness-free canonical layer, verified adapters, and the ccpi package manager. Explore at tonsofskills.com. The licence is MIT.

When your agent uses it

  • Endpoint assumptions
  • Client versions
  • Integration architecture must change
  • With upgrade Attio integration

Example prompts

  • “upgrade Attio integration”
  • “Attio migration”
  • “Attio API contract change”
  • “/attio-upgrade-migration”

Requirements

  • Compatibility (from SKILL.md): Designed for Claude Code
  • Pre-approved tools (allowed-tools): Read, Glob, Grep, WebFetch, Write, Edit

Workflow steps

7 steps, taken from the first numbered list in SKILL.md.

  1. Freeze a baseline of call sites, dependencies, contracts, fixtures, metrics, and current production behavior.
  2. Diff each affected endpoint against official documentation and OpenAPI.
  3. Classify changes as compatible, additive, behavior-sensitive, or breaking.
  4. Add compatibility adapters and tests for pagination, value shapes, errors, idempotency, and redaction.
  5. Run shadow reads or dry-run comparisons and reconcile mismatches without customer-facing mutations.
  6. Canary one bounded workspace or workload with explicit health and rollback thresholds.
  7. Expand in stages, retain rollback until reconciliation passes, then remove obsolete paths deliberately.

What it can do on your machine

Read from SKILL.md and the folder at commit cfae287. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves these tools, so the agent can use them without asking each time:

    • Read
    • Glob
    • Grep
    • WebFetch
    • Write
    • Edit

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md.

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    Links to these hosts (documentation or services it may open):

    • docs.attio.com

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

  • Compatibility

    Designed for Claude Code

    From compatibility in the SKILL.md frontmatter.

Context cost

Attio Upgrade Migration loads about 1k tokens when it runs, and up to ~1.6k if it reads all its reference files. Until then it costs about 95 tokens; SKILL.md has 380 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~95
When it runs · the whole SKILL.md, loaded when a task matches
~1k
With references · SKILL.md plus every file in references/, read only if the agent opens them
~1.6k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from jeremylongshore/tons-of-skills-marketplace at commit cfae287, republished under its MIT licence (© jeremylongshore). 380 words, ~1,023 tokens.

Download SKILL.mdSave it as .claude/skills/attio-upgrade-migration/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.
name
attio-upgrade-migration
description
Migrate an Attio integration through a contract-led inventory, OpenAPI and documentation diff, shadow validation, canary rollout, reconciliation, and tested rollback. Use when endpoint assumptions, client versions, schemas, or integration architecture must change. Trigger with "upgrade Attio integration", "Attio migration", or "Attio API contract change".
allowed-tools
Read, Glob, Grep, WebFetch, Write, Edit
compatibility
Designed for Claude Code
argument-hint
[repository-path] [change-target]
version
1.8.0
author
Jeremy Longshore <jeremy@intentsolutions.io>
license
MIT
tags
saas, attio, migration
model
inherit
effort
high

Attio Contract Migration

Overview

This skill migrates the integration that actually exists. It does not assume a generic historical version jump; it proves every affected endpoint and data shape against current Attio contracts.

Prerequisites

  • Current integration commit, dependencies, and deployment topology
  • Endpoint, scope, pagination, data-shape, and webhook inventory
  • Representative redacted fixtures and reconciliation queries
  • Canary cohort, rollback owner, and recovery objective

Tool Discipline

Use Read, Glob, and Grep to inventory current assumptions and tests. Use WebFetch only for current official Attio documentation and OpenAPI. Use Write or Edit after the contract diff, rollout boundary, and rollback point are documented.

Current Contract

  • Validate method, path, scopes, request fields, response fields, value shapes, and pagination per endpoint.
  • Treat official OpenAPI as an input to the diff, not a substitute for behavioral fixtures and endpoint documentation.
  • Record and entry queries may use offset pagination and score-based rate accounting; other endpoints can expose cursors.
  • Webhook changes must preserve raw-body signature verification and at-least-once idempotency.

Authentication

Preserve tenant-to-token binding and least privilege throughout the migration. Any new scope requires explicit justification, administrator approval, and a reversible credential plan.

Instructions

  1. Freeze a baseline of call sites, dependencies, contracts, fixtures, metrics, and current production behavior.
  2. Diff each affected endpoint against official documentation and OpenAPI.
  3. Classify changes as compatible, additive, behavior-sensitive, or breaking.
  4. Add compatibility adapters and tests for pagination, value shapes, errors, idempotency, and redaction.
  5. Run shadow reads or dry-run comparisons and reconcile mismatches without customer-facing mutations.
  6. Canary one bounded workspace or workload with explicit health and rollback thresholds.
  7. Expand in stages, retain rollback until reconciliation passes, then remove obsolete paths deliberately.
Show full SKILL.md (108 more words)Show less

Approval Boundaries

Do not add scopes, alter destructive mutations, switch all tenants, or remove the rollback path without owner approval and recorded evidence.

Output

Return the before-and-after contract matrix, risk classification, adapter plan, test evidence, shadow or canary results, reconciliation status, and rollback decision.

Error Handling

ConditionResponse
Official sources disagreePause the affected endpoint and preserve both references.
Shadow results divergeClassify the mismatch and keep production on the old path.
Canary error budget failsRoll back and retain captured redacted evidence.
Rollback cannot restore stateStop before rollout and repair recovery first.

Examples

Input:

text
change=replace hand-written record client; cohort=one test workspace

Expected handoff:

text
contract-diff=complete; shadow=matched; canary=pass; rollback=retained

Resources

© jeremylongshore, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 1 other file (references) in skills/.curated/attio-upgrade-migration of jeremylongshore/tons-of-skills-marketplace.

  • SKILL.md
  • references/official-docs.md

Open the folder on GitHubat commit cfae287

Compare with similar skills

Attio Upgrade Migration next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Attio Upgrade Migration compared with similar skills
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Attio Upgrade Migration this skilljeremylongshore/tons-of-skills-marketplace2.8k—~1kAutomated safety check: PassMIT
Analyze API Contract Coveragecyberful/cyberful135—~585Automated safety check: PassAGPL-3.0
C4 Containeraiskillstore/marketplace4337 repos~1.4kAutomated safety check: PassNone
API DesignerJeffallan/claude-skills12k1 repos~2kAutomated safety check: PassMIT
Old Coder API DesignAmazingAng/old-coder750—~3.4kAutomated safety check: PassMIT
API Surface Reviewpolarsource/polar10k—~1.3kAutomated safety check: PassMIT

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Works with

Categories

Questions about Attio Upgrade Migration

What does Attio Upgrade Migration do?

Migrate an Attio integration through a contract-led inventory, OpenAPI and documentation diff, shadow validation, canary rollout, reconciliation, and tested rollback. Attio Upgrade Migration is an agent skill from jeremylongshore/tons-of-skills-marketplace. Migrate an Attio integration through a contract-led inventory, OpenAPI and documentation diff, shadow validation, canary rollout, reconciliation, and tested rollback.

When should I use Attio Upgrade Migration?

Attio Upgrade Migration fits situations like: endpoint assumptions; client versions; integration architecture must change; with upgrade Attio integration.

How do I install Attio Upgrade Migration in Claude Code?

Run `npx skills add jeremylongshore/tons-of-skills-marketplace --skill attio-upgrade-migration -a claude-code`. Or copy the skill folder (skills/.curated/attio-upgrade-migration in jeremylongshore/tons-of-skills-marketplace) into .claude/skills/attio-upgrade-migration in your project. Claude Code loads it when a task matches its description.

How do I install Attio Upgrade Migration in Codex?

Run `npx skills add jeremylongshore/tons-of-skills-marketplace --skill attio-upgrade-migration -a codex`. Or copy the skill folder (skills/.curated/attio-upgrade-migration in jeremylongshore/tons-of-skills-marketplace) into .agents/skills/attio-upgrade-migration in your project. Codex loads it when a task matches its description.

Can I use Attio Upgrade Migration in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add jeremylongshore/tons-of-skills-marketplace --skill attio-upgrade-migration -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/attio-upgrade-migration, .gemini/skills/attio-upgrade-migration, .github/skills/attio-upgrade-migration and .opencode/skills/attio-upgrade-migration in your project.

What does Attio Upgrade Migration need to run?

SKILL.md names no scripts, command-line tools or credentials: Attio Upgrade Migration is instructions for the agent only. Its frontmatter pre-approves these tools: Read, Glob, Grep, WebFetch, Write, Edit. Compatibility (from SKILL.md): Designed for Claude Code.

Does Attio Upgrade Migration access the network?

SKILL.md names 1 domain. As links in the text: docs.attio.com. This is read from the text; nothing was executed.

Is Attio Upgrade Migration safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Attio Upgrade Migration use?

Attio Upgrade Migration is published under the MIT licence (declared in SKILL.md). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Attio Upgrade Migration use?

About 1k tokens (SKILL.md is roughly 4.1k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 528 tokens, read only when the agent opens those files.

What are the alternatives to Attio Upgrade Migration?

Skills that share tags, products or a category with Attio Upgrade Migration: Analyze API Contract Coverage (cyberful/cyberful, 135 stars), C4 Container (aiskillstore/marketplace, 433 stars), API Designer (Jeffallan/claude-skills, 12k stars) and Old Coder API Design (AmazingAng/old-coder, 750 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Attio Upgrade Migration?

jeremylongshore (a GitHub user) maintains it in jeremylongshore/tons-of-skills-marketplace, which has 2,827 GitHub stars. The repository holds 3,342 skills in this directory. The repository was last updated on October 10, 2026.

Source: jeremylongshore/tons-of-skills-marketplace on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.