Borrowing it
Nothing to install: this file belongs to GetKlai/klai. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/GetKlai/klai/main/.claude/skills/klai/tenant-isolation-checks/SKILL.mdgit clone --depth 1 https://github.com/GetKlai/klaiWrote 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/getklai/klai/tenant-isolation-checks)<a href="https://agentmods.dev/skills/getklai/klai/tenant-isolation-checks"><img src="https://agentmods.dev/badge/skills/getklai/klai/tenant-isolation-checks/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/getklai/klai/tenant-isolation-checks"><img src="https://agentmods.dev/badge/skills/getklai/klai/tenant-isolation-checks.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 | $0.00206 | $0.02551 |
| Opus 5 | $0.00103 | $0.01275 |
| Sonnet 5 | $0.00041 | $0.00510 |
| Haiku 4.5 | $0.00021 | $0.00255 |
Grade A, and why
klai-tenant-isolation-checks 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 10d 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 — 252 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Klai Tenant-Isolation Checks
This skill codifies the patterns from
reports/audit-tenant-isolation-2026-05-05/standards.md as a reviewable
checklist. Use it when reviewing a code diff to catch tenant-isolation
regressions BEFORE they ship.
How to use
Given a diff (git diff main or PR diff), walk every changed line through
the relevant checks below. Each check has a hard-or-soft verdict:
- HARD — blocker, must be fixed before merge
- SOFT — flag for review, may be acceptable with explicit justification
Output format per finding:
[HARD|SOFT] file:line — <pattern violated>
Current: <code excerpt>
Standard: <link to standards.md section>
Suggestion: <concrete fix>
Check 1: Postgres RLS coverage (HARD)
For every new SQLAlchemy model with org_id/tenant_id/customer_id:
- Does an alembic migration create a Cat-D RLS policy on the table?
- Is
ENABLE ROW LEVEL SECURITY+FORCE ROW LEVEL SECURITYset? - Is there an explicit
WITH CHECKclause? - Is the policy named
tenant_isolation(or_select/_insertfor split policies)?
For every new SQL text() query against an RLS-protected table:
- Does it include
WHERE org_id = ...OR rely on RLS viatenant_scoped_session()?
For every new op.create_table(...) in alembic:
- If the table has
org_id/tenant_id, is RLS added in the same migration?
Standards ref: standards.md sections 1, 2
Check 2: Session-helper discipline (HARD)
For every new AsyncSessionLocal() direct usage (no helper):
- Is there a
# cross-org-by-design: <reason>comment explaining why no helper? - Does the code IMMEDIATELY call
set_tenant(db, org_id)before any RLS query? - If background task / poller: is
tenant_scoped_session(org_id)orcross_org_session()used instead?
HARD — implicit cross-org via "no filter" is the bug class we're eliminating.
Standards ref: standards.md sections 3, 4
Check 3: Cat-A WITH CHECK discipline (HARD)
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.
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.
- 10d ago First seen · 252 lines · 206 tokens per session scan A 63e970fb63a7
klai-tenant-isolation-checks is a skill published in the GitHub repository GetKlai/klai (11 stars, last pushed today), licensed MIT. It adds 206 tokens to every session and 2,551 once invoked, about $0.0010 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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