Section 179 Deduction Calculator
io.github.theluckystrike/section-179-deduction-calculator-mcptheluckystrikestreamable-httpv1.0.0Scanned
Section 179 limits, 100% bonus depreciation, heavy SUV caps and asset loan cost (2025-2026, IRS).
4 tools: 1 do something that can't be undone, 1 change things and 2 only read.
- Reads private data · 0
- Reads text others write · 0
- Can send data out · 0
- 1 finding
Anlyon alternative
2 of these tools change something. Run those as governed actions.
Declare what an action changes, and Anlyon puts it under a shared limit, binds every approval to the exact request, and grades the outcome. It works on any HTTPS API you can describe as an action.
Anlyon does not run, proxy or govern this MCP server. A tool your own code calls directly is not routed through Anlyon and is not governed by it.
Import an OpenAPI spec →Tools
Grouped by what each tool does, most consequential first. Open one for its reasons and full description; descriptions are the publisher's own words.
4 tools
Can't be undone 1Claude Code: ask
calculate_asset_loan_paymentCalculates the exact monthly payment, total interest and first-year interest for an equipment, truck, tractor, RV, land, manufactured home, ATV, pontoon or other asset loan, and, f…1 finding
Why it is in this group
- The name "calculate_asset_loan_payment" says "payment": a word that usually means money moves, which cannot be taken back.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
Findings
- Warn
The server marks "calculate_asset_loan_payment" read-only (readOnlyHint: true), and its own name, description or input give the class "irreversible".
What this check looks forMatched text
annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":false}; The name "calculate_asset_loan_payment" says "payment": a word that usually means money moves, which cannot be taken back.
Description, as the server wrote it Calculates the exact monthly payment, total interest and first-year interest for an equipment, truck, tractor, RV, land, manufactured home, ATV, pontoon or other asset loan, and, for business assets, the after-tax cost: first-year tax saving from the Section 179 or bonus deduction plus deductible interest at your marginal rate, first-year net cash, and lifetime after-tax cost. Pair it with calculate_section_179 for the deduction amount.
Annotations the server declares
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
- title: Asset loan payment and after-tax cost
Changes things 1Claude Code: ask
calculate_section_179Calculates the Section 179 expense deduction as Form 4562 Part I does, with the limits raised by the One Big Beautiful Bill Act: $2,500,000 for 2025 with a dollar-for-dollar phase-…No findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
Description, as the server wrote it Calculates the Section 179 expense deduction as Form 4562 Part I does, with the limits raised by the One Big Beautiful Bill Act: $2,500,000 for 2025 with a dollar-for-dollar phase-out above $4,000,000 of section 179 property (2025 Form 4562 instructions, Pub. 946), and $2,560,000 / $4,090,000 for 2026 (Rev. Proc. 2025-32 section 4.24). Applies the business income limit and reports the carryover. 2027 limits are not published yet (checked 2026-11-02) and the tool says so.
Annotations the server declares
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
- title: Section 179 deduction (2025-2026)
Only reads 2Show 2 read-only tools
calculate_bonus_depreciationFinds the special (bonus) depreciation rate under IRC 168(k) from the acquisition and placed-in-service dates and applies it after any Section 179 deduction.No findings
Why it is in this group
- The description's first verb is "find": a word for reading.
Description, as the server wrote it Finds the special (bonus) depreciation rate under IRC 168(k) from the acquisition and placed-in-service dates and applies it after any Section 179 deduction. The One Big Beautiful Bill Act made it 100% permanently for property acquired after January 19, 2025 (written binding contract date), with an election to take 40% (60% for long production property and certain aircraft) in the first tax year ending after that date. Property acquired before January 20, 2025 keeps the TCJA phase-down: 40% if placed in service in 2025 (60% long production). Rules from IRS Notice 2026-11, the 2025 Form 4562 instructions and Pub. 946.
Annotations the server declares
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
- title: Bonus depreciation rate and amount (168(k))
get_vehicle_depreciation_limitsReturns the first-year write-off limits for a business vehicle by gross vehicle weight rating: passenger automobiles of 6,000 lb or less are held to the IRC 280F caps ($20,300 firs…No findings
Why it is in this group
- The name "get_vehicle_depreciation_limits" says "get": a word for reading.
Description, as the server wrote it Returns the first-year write-off limits for a business vehicle by gross vehicle weight rating: passenger automobiles of 6,000 lb or less are held to the IRC 280F caps ($20,300 first year with bonus, $12,300 without, for 2026 per Rev. Proc. 2026-15; $20,200 / $12,200 for 2025 per Rev. Proc. 2025-16), heavy SUVs over 6,000 and up to 14,000 lb have a Section 179 cap of $31,300 (2025) or $32,000 (2026) with bonus depreciation for the rest, and vehicles over 14,000 lb or exempt designs have no vehicle cap. Applies the more-than-50% business use rule and scales by business use.
Annotations the server declares
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
- title: Vehicle limits: heavy SUV cap and luxury auto caps
This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.
Exfil surface
Which tools read private data, which read text someone else can write, and which can send data out. One of each is a path a prompt injection can use.
No private-data, untrusted-input, outbound path in this server alone: no tool is tagged private-data or untrusted-input or outbound.
- Reads private data0
- Reads files, mail, messages, databases, secrets, calendars or repositories.
- Reads text others write0
- Brings in text someone else can write: web pages, inbound email, messages, issues and comments.
- Can send data out0
- Can carry data to people or systems: it sends, posts or publishes, or takes a recipient, channel or URL.
Other servers in the same agent add their own tools to these paths. Audit your whole setup to see them together.
Findings
Matches of fixed checks, with the text they matched.
The server marks "calculate_asset_loan_payment" read-only (readOnlyHint: true), and its own name, description or input give the class "irreversible".
What this check looks forMatched text
annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":false}; The name "calculate_asset_loan_payment" says "payment": a word that usually means money moves, which cannot be taken back.
History
Changes to its tool definitions and to its remote endpoint, newest first.
No change seen yet. Its tools are rescanned every day, and a remote endpoint is looked at once a week.
Install
Pinned to version 1.0.0. Values in angle brackets are yours to fill in.
claude mcp add --transport http section-179-deduction-calculator https://section-179-deduction-calculator-mcp.lipmichal.workers.dev/mcpclaude mcp add --transport http section-179-deduction-calculator https://section-179-deduction-calculator-mcp.lipmichal.workers.dev/mcpRun in a terminal.
Claude Code permissions
Allow the reads, ask before a change or a way out, deny the deletes. Paste into .claude/settings.json.
{
"permissions": {
"allow": [
"mcp__section-179-deduction-calculator__calculate_bonus_depreciation",
"mcp__section-179-deduction-calculator__get_vehicle_depreciation_limits"
],
"ask": [
"mcp__section-179-deduction-calculator__calculate_section_179",
"mcp__section-179-deduction-calculator__calculate_asset_loan_payment"
],
"deny": []
}
}Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. A read that can send data out (it takes a URL, say) asks first too. It assumes the server is installed as section-179-deduction-calculator. Review it before you use it.
Pin
Keep the decision: fail CI when the tools change, follow every change, or show a badge.
Pin in CI
Fail a build when the tools you reviewed are not the tools the server serves today.
curl -s "https://anlyon.dev/api/v1/servers/io.github.theluckystrike/section-179-deduction-calculator-mcp/verify?hash=c87b80b35c71509d73a7ed694cb0f4675931517cabb1667cba6717b1a6131af4" | jq -e '.changed == false'Pinned hash c87b80b35c71, from Nov 2, 2026, 03:18 UTC.
Watch
Get told when its tools change: a new tool, a new description, a new class.
https://anlyon.dev/servers/io.github.theluckystrike/section-179-deduction-calculator-mcp/changes.xmlAn Atom feed. Works in any feed reader or Slack's RSS app.
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[](https://anlyon.dev/servers/io.github.theluckystrike/section-179-deduction-calculator-mcp)Source: MCP Registry · repository. Synced Nov 2, 2026, 03:18 UTC.