Borrowing it
Nothing to install: this file belongs to noontide-co/mainbranch. 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/noontide-co/mainbranch/main/.claude/skills/mb-site/SKILL.mdgit clone --depth 1 https://github.com/noontide-co/mainbranchWrote 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/noontide-co/mainbranch/mb-site)<a href="https://agentmods.dev/skills/noontide-co/mainbranch/mb-site"><img src="https://agentmods.dev/badge/skills/noontide-co/mainbranch/mb-site/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/noontide-co/mainbranch/mb-site"><img src="https://agentmods.dev/badge/skills/noontide-co/mainbranch/mb-site.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 2 findings, up to medium
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- medium Excessive Agency · line 3 Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.Fix: Add human-in-the-loop confirmation for destructive, irreversible, or high-impact operations. Never auto-execute commands that modify files, send data, or alter system state.
- medium Excessive Agency · line 18 Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.Fix: Add human-in-the-loop confirmation for destructive, irreversible, or high-impact operations. Never auto-execute commands that modify files, send data, or alter system state.
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 | $0.00373 | $0.04539 |
| Opus 5 | $0.00187 | $0.02269 |
| Sonnet 5 | $0.00075 | $0.00908 |
| Haiku 4.5 | $0.00037 | $0.00454 |
Grade A, and why
mb-site scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 10d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 321 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Site
Pick a site shape, build it from business context, and ship it through a linked site repo. Cloudflare Pages with git auto-deploy is the default deploy path.
Shared source: The portable workflow contract lives in
workflows/mb-site/workflow.md. This Claude skill is the Claude Code shell over
that source.
Shared contract markers: Keep these aligned with the shared source.
Required commands:
mb status --json --peekmb start --jsonmb doctor repair --planmb connect doctor --jsonmb launch check "$SITE_REPO" --business-repo "$BUSINESS_REPO" --jsonmb site check "$SITE_REPO" --business-repo "$BUSINESS_REPO" --jsonmb validate --cross-refs --jsonmb checkpoint --plan --json
Required fact paths:
money_pathmoney_path.objects.proof.qualitymoney_path.objects.cta_pathmoney_path.objects.channel_strategymoney_path.objects.active_pushvalidation.file_contractscontent_strategycontent_strategy.overall_statecontent_strategy.simple_entry_pointcontent_strategy.layersranked_actionsupdatereadinessdrift.itemsintegrationsmeasurementmeasurement.availablemeasurement.statemeasurement.facts.expected_eventsmeasurement.facts.instrumentationmeasurement.blocked_countmeasurement.manual_countrelationship_health.gapscheckpoint.pendingcheckpoint.pending.blockersruntime.codex_cliruntime.claude_codestateblockedmanualevidencefacts.expected_eventsfacts.instrumentationfacts.provider_statefacts.app_stackfacts.deployfacts.commercefacts.emailfacts.measurementrecommended_actionsourcechild_descriptor
Approval gates: updates_repairs_migrations, file_writes, checkpoint,
provider_mutation, publishing_or_spend, customer_contact, private_data,
destructive_operations, structured_collection, public_issue_or_proposal,
domain_purchase, dns_change, pages_project, custom_domain_attach,
deploy_or_push, and account_change.
Public/private boundaries: no_secrets, no_raw_provider_exports,
no_raw_transcripts, no_customer_member_data,
no_private_runtime_settings, no_private_dms_or_gated_communities,
no_raw_finance_legal_records, and
no_absolute_local_paths_in_committed_descriptors.
Core flow: support plan, brief, build, preview, check, publish, iterate, graduate, or recover modes.
Marker phrase: plan, brief, build, preview, check, publish, iterate, graduate, or recover.
Preserve lander, minisite, website, sales-video surface, and site repo modes;
use mb site check readiness states including ready_for_operator_review; keep
domain, DNS, Cloudflare Pages, custom-domain, deploy, publishing, provider
mutation, account changes, spend, and customer contact behind explicit gates.
Provider boundary phrase: provider mutation. Broad launch readiness uses
mb launch check; paid-traffic measurement detail uses mb site check.
Codex support stays read-only planning until runtime smoke proves site writes,
builds, deploys, and publishing.
CLI facts first: In business repo mode, run mb status --json --peek
before setup/provider/launch-readiness advice. In site repo mode or whenever a
site repo is known, run mb launch check "$SITE_REPO" --business-repo "$BUSINESS_REPO" --json for broad launch truth, then mb site check "$SITE_REPO" --business-repo "$BUSINESS_REPO" --json for paid-traffic
readiness or publish guidance.
What ships with it
53 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.
- references/anti-patterns.md 5.3 KB
- references/archetypes.md 3.6 KB
- references/archetypes/broken-hero.md 2.0 KB
- references/archetypes/dark-hero.md 6.2 KB
- references/archetypes/david-goliath.md 2.1 KB
- references/archetypes/redemption.md 6.7 KB
- references/archetypes/savior.md 1.9 KB
- references/archetypes/tragedy-mindset.md 6.2 KB
- references/archetypes/tragic-comedy.md 7.3 KB
- references/archetypes/victim.md 5.3 KB
- references/archetypes/wounded-healer.md 2.6 KB
- references/cloudflare-pages-link.md 5.1 KB
- references/concept-variations.md 6.3 KB
- references/deployment.md 6.3 KB
- references/examples.md 3.0 KB
- references/frontend-design.md 11 KB
- references/graduation.md 8.7 KB
- references/headline-formulas.md 3.2 KB
- references/lander-build.md 2.8 KB
- references/lander-generation-system.md 2.5 KB
- references/minisite-brief.md 4.5 KB
- references/minisite-build.md 4.3 KB
- references/minisite-buildout.md 3.0 KB
- references/minisite-conversion.md 3.6 KB
- references/minisite-generation-system.md 11 KB
- references/minisite-iterate.md 1.4 KB
- references/minisite-publish.md 1.4 KB
- references/minisite-research.md 2.4 KB
- references/minisite-setup.md 6.1 KB
- references/minisite.md 24 KB
- references/naming-heuristic.md 5.3 KB
- references/pull-engine-updates.md 2.4 KB
- references/review.md 3.7 KB
- references/sales-video.md 1.8 KB
- references/section-patterns.md 11 KB
- references/seo.md 7.1 KB
- references/site-context.md 6.5 KB
- references/site-measurement.md 2.9 KB
- references/site-recovery.md 1.2 KB
- references/site-repo-workflow.md 3.5 KB
- references/troubleshooting.md 3.8 KB
- references/website-build.md 11 KB
- scripts/_envelope.py 2.6 KB runs code
- scripts/.gitignore 34 B
- scripts/dns.py 22 KB runs code
- scripts/domain.py 14 KB runs code
- scripts/init-site.sh 3.8 KB runs code
- scripts/og_render.py 13 KB runs code
- scripts/pages.py 37 KB runs code
- scripts/setup_creds.sh 4.0 KB runs code
- scripts/stripe.py 30 KB runs code
- scripts/test_atoms.py 47 KB runs code
- scripts/verify_live.py 11 KB runs code
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 · 321 lines · 373 tokens per session scan A cb9c9fe442b0
mb-site is a skill published in the GitHub repository noontide-co/mainbranch (39 stars, last pushed 26d ago), licensed MIT. It adds 373 tokens to every session and 4,539 once invoked, about $0.0019 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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