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 christianclaudio/mcp-server-sigma --skill sigma-mcpgit clone --depth 1 https://github.com/christianclaudio/mcp-server-sigmaWrote 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/christianclaudio/mcp-server-sigma/sigma-mcp)<a href="https://agentmods.dev/skills/christianclaudio/mcp-server-sigma/sigma-mcp"><img src="https://agentmods.dev/badge/skills/christianclaudio/mcp-server-sigma/sigma-mcp/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/christianclaudio/mcp-server-sigma/sigma-mcp"><img src="https://agentmods.dev/badge/skills/christianclaudio/mcp-server-sigma/sigma-mcp.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.00033 | $0.02174 |
| Opus 5.5 | $0.00013 | $0.00870 |
| Sonnet 5.5 | $0.00007 | $0.00435 |
| Haiku 4.5 | $0.00003 | $0.00217 |
Grade A, and why
sigma-mcp 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.
How it starts
The opening of the file, as written. The whole thing — 88 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Sigma Computing MCP Server (mcp-server-sigma) Agent Skill
This skill provides expert instructions, architectural workflows, and safety protocols for AI agents operating against Cloud BI & Analytics environments via mcp-server-sigma.
🎯 Core Agent Workflows
1. Data Model & Visual Provisioning Workflow
- Step 1: Connection Verification — Call
datasets_get_connection(connection_id=...)to inspect active database paths and schemas. - Step 2: Schema Synchronization — Invoke
datasets_sync_all_tables_in_schema(connection_id=..., database=..., schema=...)to ensure all remote warehouse metadata is up to date. - Step 3: Template Instantiation — Use
workbooks_create_workbook_from_template(template_id=..., folder_id=..., name=...)to programmatically build real visual charts and pivot tables. - Step 4: Source Swapping — Apply
elements_swap_template_sources(template_id=..., connection_mapping=[...])to rebind template tables to new warehouse targets.
2. Tenant Provisioning & Multi-Tenant Governance (RFC 8693)
- Token Exchange & Allowlist: For tenant-scoped access, pass
tenant_org_idtoadmin_get_tenant_scoped_info. In strict tenant mode (SIGMA_STRICT_TENANT_ALLOWLIST=1), access is rejected unlesstenant_org_idis explicitly present inSIGMA_ALLOWED_TENANTS. - Bulk Tenant Connection Sync: Execute
datasets_bulk_sync_tenant_connections(dry_run=True)first to preview all tenant databases present in the allowed tenant set. Setdry_run=Falseto synchronize schemas across configured organization tenants concurrently.
3. Security, Permission & User Lifecycle Management
- Member Onboarding: Call
admin_onboard_member(email=..., first_name=..., last_name=..., team_ids=[...])to create the member and automatically assign team memberships. - Workbook Transfer: Use
workbooks_reassign_workbook_ownership(old_owner_email=..., new_owner_email=..., dry_run=True)to preview and transfer all owned workbooks during employee offboarding. - Bulk Offboarding Safety: First call
admin_bulk_deactivate_members(name_pattern=...); the defaultdry_run=Trueonly reports the matching members. To deactivate them, call it again withadmin_bulk_deactivate_members(name_pattern=..., dry_run=False, confirm=True). It refuses catch-all patterns and patterns that match more than 10 active members, and it is refused at call time unlessSIGMA_MCP_ALLOW_BULK_DESTRUCTIVE=1.
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.
- 6d ago Changed 9c112f19e9e6
- 18d ago Changed 886d254562c5
- 19d ago Changed · +9 lines 9fb2c2fef3e3
- 23d ago Changed 54317be6698c
- 1mo ago First seen · 79 lines · 33 tokens per session scan A 49f58dc56b8d
sigma-mcp is a skill published in the GitHub repository christianclaudio/mcp-server-sigma (2 stars, last pushed yesterday), licensed Apache-2.0. It adds 33 tokens to every session and 2,174 once invoked, about $0.0001 per session on Opus 5.5. 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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