fusebase-gate

Guidance for using Fusebase Gate, a service that provides controlled access to application resources through MCP, a standard way for AI tools to connect to software.

In plain words
What is it for?
It helps follow Gate contracts, list users, check service health, use generated MCP tools, and handle database access and migrations safely.
Why use it?
It reduces mistakes when working with access tokens, organizations, health checks, generated tools, and isolated databases.

Skill for Claude CodeCodex

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/fusebase-dev/fusebase-flow/fusebase-gate
Any agent
npx skills add fusebase-dev/fusebase-flow --skill fusebase-gate
Clone the repo
git clone --depth 1 https://github.com/fusebase-dev/fusebase-flow

Made for: Claude Code, Codex.

Per session 38 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,833 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 $0.00038 $0.01833
Opus 5 $0.00019 $0.00916
Sonnet 5 $0.00008 $0.00367
Haiku 4.5 $0.00004 $0.00183

Measured 2d ago against content hash bf37f49b917e, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

fusebase-gate 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 2d 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.

.agents/skills/fusebase-gate/SKILL.md · 151 lines

How it starts

The opening of the file, as written. The whole thing — 151 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Fusebase Gate MCP Skill

This document describes how to use MCP (Model Context Protocol) with Fusebase Gate during LLM development. Fusebase Gate is a service consumer built on top of the shared Fusebase platform runtime.

For rules and checklists, see AGENTS.md.

For FuseBase PostgreSQL Database (sql / postgres via the Gate isolated-stores contract), use references/isolated-sql.md for the MCP-oriented sequence and references/isolated-sql-migration-discipline.md whenever you edit or apply migration bundles (anti-drift). For runtime errors and support handoff, use references/isolated-sql-integrator-troubleshooting.md. Do not load operator runbooks (isolated-sql-stores, isolated-sql-rls-plan) — they are platform-internal. See TOC below.

Critical isolated-store runtime rule: a Gate isolated store is a platform-bound resource, not app environment configuration. Do not ask users to create app secrets or env vars for storeId, database IDs, physical database names, or provider connection details. Runtime code must resolve the store through Gate using the app token/source scope and stable alias (or use the store already bound by the platform). storeId may appear in MCP/operator handoff logs or CLI migration commands, but it must not be persisted as an app secret or hardcoded runtime config.


References

Each reference is in a separate file under references/. Load the file when you need that topic.

meta

specialized

Read the full file on GitHub · 151 lines

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. 2d ago First seen · 151 lines · 38 tokens per session scan A bf37f49b917e

Subscribe to this mod's changes

fusebase-gate is a skill published in the GitHub repository fusebase-dev/fusebase-flow (9 stars, last pushed 7d ago), licensed MIT. It adds 38 tokens to every session and 1,833 once invoked, about $0.0002 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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