convex-migrate

convex-migrate is a skill for Claude Code, Codex from openclaw/clawhub. It costs 26 tokens per session (223 once invoked), scanned A, original, MIT.

A process for changing the data structure of a live Convex app while keeping existing records valid. It first adds a new field as optional, fills it for old records, and only then makes it required.

In plain words
What is it for?
Use it to install and run Convex migrations, transform or fill existing records, compare record counts, and tighten the schema after the update.
Why use it?
Making a new field required immediately can reject existing records and break deployment. The staged process gives old data time to be updated safely.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: installed under .agents/ (shared by several agents).

About the project

ClawHub is a public registry where OpenClaw users publish, version, search, and install text-based agent skills and OpenClaw packages. It provides web browsing, a CLI-oriented API, moderation, vector search, and artifact hosting for code plugins, bundle plugins, and experimental whole-agent packages. The catalogue skills and agents are entries that can be discovered or used through this registry.

openclaw/clawhub · 9,393 stars · on GitHub · clawhub.ai

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.

agentmods
npx agentmods add skills/openclaw/clawhub/convex-migrate
Any agent
npx skills add openclaw/clawhub --skill convex-migrate
Clone the repo
git clone --depth 1 https://github.com/openclaw/clawhub

Made for: Claude Code, Codex.

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 convex-migrate

README.md
[![agentmods](https://agentmods.dev/badge/skills/openclaw/clawhub/convex-migrate.svg)](https://agentmods.dev/skills/openclaw/clawhub/convex-migrate)
Your own site
<a href="https://agentmods.dev/skills/openclaw/clawhub/convex-migrate"><img src="https://agentmods.dev/badge/skills/openclaw/clawhub/convex-migrate.svg" alt="Measured on agentmods" height="20"></a>
Per session 26 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 223 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00026 $0.00223
Opus 5 $0.00013 $0.00112
Sonnet 5 $0.00005 $0.00045
Haiku 4.5 $0.00003 $0.00022

Measured 6d ago against content hash eda7bbcc590a, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

convex-migrate 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 6d 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.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

.agents/skills/convex-migrate/SKILL.md · 24 lines

What it actually says

Migrate the schema / data on a live app

Change a deployed schema without breaking existing data: stage the schema change, install @convex-dev/migrations, write a backfill that makes old rows valid, run it, and verify before tightening the validator.

Workflow

  1. Make the new field optional first (so deploy doesn't reject existing rows).
  2. Install @convex-dev/migrations; write a migration that backfills/transforms existing rows.
  3. Run the migration; verify all rows are valid.
  4. Tighten the validator (make the field required) once the backfill is complete.

Rules

  • Never tighten a validator before the backfill completes — it rejects existing rows and breaks the live app.
  • Add new fields as optional first, migrate, then require.
  • Verify row counts before and after.
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. 6d ago First seen · 24 lines · 26 tokens per session scan A eda7bbcc590a

Subscribe to this mod's changes

convex-migrate is a skill published in the GitHub repository openclaw/clawhub (9,393 stars, last pushed today), licensed MIT. It adds 26 tokens to every session and 223 once invoked, about $0.0001 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 2026-08-30.