HouseExhale
io.github.attachmentnerd/houseexhaleattachmentnerdstreamable-httpv1.0.0Scanned
Explain bedroom CO2 readings, check certified HRV/ERV airflow, and find US installers and rebates.
5 tools: 1 change things and 4 only read.
- Reads private data · 0
- Reads text others write · 0
- Can send data out · 0
- No findings
Anlyon alternative
1 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.
5 tools
Changes things 1Claude Code: ask
check_ventilation_unitChecks a quoted HRV or ERV against bedroom airflow needs using exact-model HVI-certified data.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 Checks a quoted HRV or ERV against bedroom airflow needs using exact-model HVI-certified data. Returns a screening verdict, reasons, assumptions and questions for the installer. Ambiguous model names return candidates for clarification rather than a guessed model. Does not provide a permit-ready design or guarantee installation performance.
Annotations the server declares
- title: Check a quoted HRV or ERV
- readOnlyHint: true
- destructiveHint: false
- openWorldHint: false
Only reads 4Show 4 read-only tools
explain_co2_readingExplains a bedroom CO₂ reading against the precautionary 800 ppm average-while-asleep goal: band, distance from the goal, whether the measurement is comparable, signs of a monitor …No findings
Why it is in this group
- The name "explain_co2_reading" says "explain": a word for reading.
Description, as the server wrote it Explains a bedroom CO₂ reading against the precautionary 800 ppm average-while-asleep goal: band, distance from the goal, whether the measurement is comparable, signs of a monitor reading low, and free fixes with trade-offs. The goal is not a health limit. Door-open nights appear only as one-night tests, not fixes.
Annotations the server declares
- title: Explain a CO₂ reading
- readOnlyHint: true
- destructiveHint: false
- openWorldHint: false
find_installersLists HRV and ERV installer companies for a US ZIP code in HouseExhale’s neutral order, with its ordering rule and coverage limits.No findings
Why it is in this group
- The name "find_installers" says "find": a word for reading.
Description, as the server wrote it Lists HRV and ERV installer companies for a US ZIP code in HouseExhale’s neutral order, with its ordering rule and coverage limits. Returns member companies where the installer program is open, otherwise researched companies from public pages covering the Colorado Front Range and New England. Contains no sponsored cards or paid recommendations. Does not contact anyone.
Annotations the server declares
- title: Find installers
- readOnlyHint: true
- destructiveHint: false
- openWorldHint: false
find_rebatesWhat HouseExhale’s research found for a state (by ZIP code or state): utility and state programs that pay toward an HRV or ERV by name, other ventilation rebates, air sealing and i…No findings
Why it is in this group
- The name "find_rebates" says "find": a word for reading.
Description, as the server wrote it What HouseExhale’s research found for a state (by ZIP code or state): utility and state programs that pay toward an HRV or ERV by name, other ventilation rebates, air sealing and insulation help, the state’s federal home energy rebates, state tax credits, and the status of the federal tax credits. Each with its link and date. Never promises eligibility.
Annotations the server declares
- title: Find rebates
- readOnlyHint: true
- destructiveHint: false
- openWorldHint: false
units_to_ask_aboutLists up to three reviewed HRV/ERV families whose HVI-certified airflow covers what the household’s bedrooms need at night, with margin: units to ask installers about, never a sing…No findings
Why it is in this group
- The description's first verb is "list": a word for reading.
Description, as the server wrote it Lists up to three reviewed HRV/ERV families whose HVI-certified airflow covers what the household’s bedrooms need at night, with margin: units to ask installers about, never a single pick or a recommendation, and never paid placement. Also returns the night airflow target and how it was worked out.
Annotations the server declares
- title: Units to ask about
- readOnlyHint: true
- destructiveHint: false
- openWorldHint: false
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.
No check matched anything in these tool definitions. That is not a safety guarantee.
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 houseexhale https://houseexhale.com/mcpclaude mcp add --transport http houseexhale https://houseexhale.com/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__houseexhale__explain_co2_reading",
"mcp__houseexhale__units_to_ask_about",
"mcp__houseexhale__find_installers",
"mcp__houseexhale__find_rebates"
],
"ask": [
"mcp__houseexhale__check_ventilation_unit"
],
"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 houseexhale. 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.attachmentnerd/houseexhale/verify?hash=25efa45b86a1eb0093998fe9657e152ecf67f4fbb926fdf8b1957cb73cb09834" | jq -e '.changed == false'Pinned hash 25efa45b86a1, from Oct 22, 2026, 18:18 UTC.
Watch
Get told when its tools change: a new tool, a new description, a new class.
https://anlyon.dev/servers/io.github.attachmentnerd/houseexhale/changes.xmlAn Atom feed. Works in any feed reader or Slack's RSS app.
Badge
[](https://anlyon.dev/servers/io.github.attachmentnerd/houseexhale)Source: MCP Registry. Synced Oct 22, 2026, 18:17 UTC.