Fitness Tools

by almostjacked · remote · local (npm) · no sign-in to list tools · v0.3.4 · published by GitHub user almostjacked

Deterministic fitness calculators — TDEE, adaptive TDEE, body fat, 1RM, macros — with consensus.

Changes · 10

Compare Registry entry

10 tools: 10 change things.

Scanned Oct 21, 2026

Deletes or cancels0Claude Code: deny
Can't be undone0Claude Code: ask
Changes things10Claude Code: ask: see these tools
Only reads0Claude Code: allow

1 check matched something in the tool definitions. No finding is not a safety guarantee. How the checks work.

claude mcp add --transport http fitness-tools https://fitness-tools-mcp.ajwallacemusic.workers.dev/mcp

Findings

Matches of fixed checks, with the text they matched.

1 warn

Warnbody-fat
The input schema at properties.weight.anyOf[0].properties.value.$ref contains a 43-character base64 string.
Matched text
inputSchema.properties.weight.anyOf[0].properties.value.$ref: "#/properties/height/anyOf/0/properties/value"
What this check looks for

Tools

Open a tool for its reasons and full description. Descriptions are the publisher's own words, shown as they are.

10 tools

Changes things 10Creates or changes something that can be changed back.Claude Code: ask

activity-multiplierEstimate the TDEE activity multiplier via the classic lookup table or a NEAT+EAT model (occupation/steps for non-exercise, training volume for exercise).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
Estimate the TDEE activity multiplier via the classic lookup table or a NEAT+EAT model (occupation/steps for non-exercise, training volume for exercise).
Annotations the server declares
- title: Activity Multiplier
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
adaptive-tdeeMeasure actual TDEE from a logged history of daily weight and/or calorie intake.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
Measure actual TDEE from a logged history of daily weight and/or calorie intake. Default method (kalman) is a joint Kalman filter over true weight and TDEE — handles missing days, gates outliers, and reports uncertainty (CI95) alongside denoised true weight; regression/endpoints are simple window-based estimates kept for comparison. Use instead of formula TDEE once real logged data exists. Each entry needs at least one of weight/kcal (not necessarily both). Entry dates must span 10 years or less (earliest to latest). Note: all methods need at least one weigh-in (kalman) or two (regression/endpoints) — a history with zero weight entries throws under the kalman default; pass methods:'all' to get a graceful empty/skipped result instead.
Annotations the server declares
- title: Adaptive TDEE
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
body-fatEstimate body-fat % via US Navy circumference, Jackson-Pollock 3-site skinfold, and Deurenberg (BMI-based) methods.1 finding
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.
Findings
- Warn
  The input schema at properties.weight.anyOf[0].properties.value.$ref contains a 43-character base64 string.
  Matched text
  inputSchema.properties.weight.anyOf[0].properties.value.$ref: "#/properties/height/anyOf/0/properties/value"
  What this check looks for
Description, as the server wrote it
Estimate body-fat % via US Navy circumference, Jackson-Pollock 3-site skinfold, and Deurenberg (BMI-based) methods.
Annotations the server declares
- title: Body Fat Percentage
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
ffmiCompute the Fat-Free Mass Index (FFMI) and its height-adjusted form from weight and body fat (or lean mass), and flag whether it exceeds the ~25 natural ceiling.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
Compute the Fat-Free Mass Index (FFMI) and its height-adjusted form from weight and body fat (or lean mass), and flag whether it exceeds the ~25 natural ceiling.
Annotations the server declares
- title: Fat-Free Mass Index
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
macrosCompute protein/fat/carb grams for a calorie target using the g-per-kg-bodyweight method, with goal-based protein defaults.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
Compute protein/fat/carb grams for a calorie target using the g-per-kg-bodyweight method, with goal-based protein defaults.
Annotations the server declares
- title: Macronutrient Split
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
muscle-potentialEstimate drug-free maximum bodyweight at a target body-fat % via Casey Butt (wrist+ankle), the FFMI~25 natural cap, and Berkhan's max-contest-weight model.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
Estimate drug-free maximum bodyweight at a target body-fat % via Casey Butt (wrist+ankle), the FFMI~25 natural cap, and Berkhan's max-contest-weight model. Men only in v1.
Annotations the server declares
- title: Maximum Muscular Potential
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
one-rep-maxEstimate 1RM from a submaximal set via Epley, Brzycki, Lombardi, Wathan, O'Conner, and Mayhew; returns a %1RM load chart.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
Estimate 1RM from a submaximal set via Epley, Brzycki, Lombardi, Wathan, O'Conner, and Mayhew; returns a %1RM load chart.
Annotations the server declares
- title: One-Rep Max
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
powerlifting-attemptsDeterministic opener/second/third attempts from an estimated 1RM, plus a warmup ramp and per-side plate loading.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
Deterministic opener/second/third attempts from an estimated 1RM, plus a warmup ramp and per-side plate loading. Tunable by aggressiveness and available plates.
Annotations the server declares
- title: Powerlifting Meet Attempts
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
rsmiEstimate the appendicular skeletal muscle index (RSMI) from a DXA value (direct) and/or an anthropometric estimate (Wen 2011), and flag low muscle mass against EWGSOP2, AWGS, and B…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
Estimate the appendicular skeletal muscle index (RSMI) from a DXA value (direct) and/or an anthropometric estimate (Wen 2011), and flag low muscle mass against EWGSOP2, AWGS, and Baumgartner sarcopenia cutoffs.
Annotations the server declares
- title: Relative Skeletal Muscle Index
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
tdeeEstimate BMR and TDEE via Mifflin-St Jeor, Harris-Benedict, Katch-McArdle, and Cunningham.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
Estimate BMR and TDEE via Mifflin-St Jeor, Harris-Benedict, Katch-McArdle, and Cunningham. Provide body_fat or lean_mass to unlock the LBM-based methods.
Annotations the server declares
- title: Total Daily Energy Expenditure
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- 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.

Install

Pinned to version 0.3.4. Values in angle brackets are yours to fill in.

claude mcp add --transport http fitness-tools https://fitness-tools-mcp.ajwallacemusic.workers.dev/mcp

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json

{
  "permissions": {
    "allow": [],
    "ask": [
      "mcp__fitness-tools__tdee",
      "mcp__fitness-tools__adaptive-tdee",
      "mcp__fitness-tools__body-fat",
      "mcp__fitness-tools__one-rep-max",
      "mcp__fitness-tools__macros",
      "mcp__fitness-tools__activity-multiplier",
      "mcp__fitness-tools__powerlifting-attempts",
      "mcp__fitness-tools__muscle-potential",
      "mcp__fitness-tools__ffmi",
      "mcp__fitness-tools__rsmi"
    ],
    "deny": []
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. It assumes the server is installed as fitness-tools. Review it before you use it.

Keep track

Get told when this server's tools change: a new tool, a new description, a new class.

https://anlyon.dev/servers/io.github.almostjacked/fitness-tools/changes.xml

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Source: MCP Registry · repository. Synced Oct 21, 2026, 18:22 UTC.

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