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.
npx skills add Heyvhuang/ship-faster --skill supabasegit clone --depth 1 https://github.com/Heyvhuang/ship-fasterWrote 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.
[](https://agentmods.dev/skills/heyvhuang/ship-faster/supabase)<a href="https://agentmods.dev/skills/heyvhuang/ship-faster/supabase"><img src="https://agentmods.dev/badge/skills/heyvhuang/ship-faster/supabase/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.
<a href="https://agentmods.dev/skills/heyvhuang/ship-faster/supabase"><img src="https://agentmods.dev/badge/skills/heyvhuang/ship-faster/supabase.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00078 | $0.01503 |
| Opus 5 | $0.00039 | $0.00751 |
| Sonnet 5 | $0.00016 | $0.00301 |
| Haiku 4.5 | $0.00008 | $0.00150 |
Grade A, and why
supabase 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 9d 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.
How it starts
The opening of the file, as written. The whole thing — 192 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Supabase Database Operations
Execute database operations on Supabase: queries, writes, migrations, and diagnostics.
MCP is optional. This skill works with MCP (auto), Supabase CLI, psql, or Dashboard. See BACKENDS.md for execution options.
Scope
Applies to:
- Database actions on Supabase: query/statistics/export, write (after confirmation), migration (DDL), type generation, query logs/advisors
Does not apply to:
- Project-side integration (env/client code/data access layer)
→ Useworkflow-ship-faster(Step 6) for project setup; this skill handles DB-side actions only
Called by:
workflow-ship-fasteruses this skill as DB operation foundation
Postgres Best Practices (Built-in)
Ship Faster vendors Supabase's Postgres best practices under references/postgres-best-practices/.
Consult it when:
- Writing/reviewing/optimizing SQL queries
- Designing indexes, schema changes, or RLS policies
- Diagnosing performance, locking, or connection issues
Source of truth:
- Full guide:
references/postgres-best-practices/AGENTS.md - Individual rules:
references/postgres-best-practices/rules/*.md
When proposing changes, cite the relevant rule file path (for example: references/postgres-best-practices/rules/query-missing-indexes.md) and keep changes minimal.
Security Rules (Must Follow)
- Read first: Always check schema before any operation
- Default LIMIT 50: All SELECT queries default to
LIMIT 50, unless user explicitly requests more - Write operation confirmation: INSERT/UPDATE/DELETE must before execution:
- Display the SQL to be executed
- State expected number of affected rows
- Await explicit user confirmation
- No bare writes: UPDATE/DELETE without WHERE condition → refuse directly, do not execute
- Batch threshold: Affecting > 100 rows → force double confirmation + suggest
SELECT count(*)first - DDL via migration: Schema changes must use migrations, not direct DDL
- Production environment: Write disabled by default; only allow when user explicitly says "execute on prod" and double confirms
- Sensitive fields: email/phone/token/password are masked or not returned by default, unless user explicitly requests
What ships with it
40 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.
- BACKENDS.md 3.4 KB
- references/postgres-best-practices/AGENTS.md 44 KB
- references/postgres-best-practices/metadata.json 818 B
- references/postgres-best-practices/README.md 3.0 KB
- references/postgres-best-practices/rules/_contributing.md 4.0 KB
- references/postgres-best-practices/rules/_sections.md 1.6 KB
- references/postgres-best-practices/rules/_template.md 1.0 KB
- references/postgres-best-practices/rules/advanced-full-text-search.md 1.4 KB
- references/postgres-best-practices/rules/advanced-jsonb-indexing.md 1.4 KB
- references/postgres-best-practices/rules/conn-idle-timeout.md 1.3 KB
- references/postgres-best-practices/rules/conn-limits.md 1.3 KB
- references/postgres-best-practices/rules/conn-pooling.md 1.3 KB
- references/postgres-best-practices/rules/conn-prepared-statements.md 1.5 KB
- references/postgres-best-practices/rules/data-batch-inserts.md 1.3 KB
- references/postgres-best-practices/rules/data-n-plus-one.md 1.3 KB
- references/postgres-best-practices/rules/data-pagination.md 1.3 KB
- references/postgres-best-practices/rules/data-upsert.md 1.4 KB
- references/postgres-best-practices/rules/lock-advisory.md 1.5 KB
- references/postgres-best-practices/rules/lock-deadlock-prevention.md 1.8 KB
- references/postgres-best-practices/rules/lock-short-transactions.md 1.3 KB
- references/postgres-best-practices/rules/lock-skip-locked.md 1.3 KB
- references/postgres-best-practices/rules/monitor-explain-analyze.md 1.4 KB
- references/postgres-best-practices/rules/monitor-pg-stat-statements.md 1.4 KB
- references/postgres-best-practices/rules/monitor-vacuum-analyze.md 1.5 KB
- references/postgres-best-practices/rules/query-composite-indexes.md 1.4 KB
- references/postgres-best-practices/rules/query-covering-indexes.md 1.3 KB
- references/postgres-best-practices/rules/query-index-types.md 1.4 KB
- references/postgres-best-practices/rules/query-missing-indexes.md 1.2 KB
- references/postgres-best-practices/rules/query-partial-indexes.md 1.3 KB
- references/postgres-best-practices/rules/schema-data-types.md 1.4 KB
- references/postgres-best-practices/rules/schema-foreign-key-indexes.md 1.6 KB
- references/postgres-best-practices/rules/schema-lowercase-identifiers.md 1.7 KB
- references/postgres-best-practices/rules/schema-partitioning.md 1.5 KB
- references/postgres-best-practices/rules/schema-primary-keys.md 1.8 KB
- references/postgres-best-practices/rules/security-privileges.md 1.5 KB
- references/postgres-best-practices/rules/security-rls-basics.md 1.3 KB
- references/postgres-best-practices/rules/security-rls-performance.md 1.5 KB
- references/postgres-best-practices/SKILL.md 1.8 KB
- schema.md 4.9 KB
- SETUP.md 2.3 KB
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.
- 9d ago First seen · 192 lines · 78 tokens per session scan A 371410a44670
supabase is a skill published in the GitHub repository Heyvhuang/ship-faster (339 stars, last pushed 24d ago), licensed MIT. It adds 78 tokens to every session and 1,503 once invoked, about $0.0004 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.
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