From ec9acbd4b2f4fb470fde2b5ea40668c40d64da04 Mon Sep 17 00:00:00 2001
From: dchaudhari7177 <dipakchaudhari12717@gmail.com>
Date: Wed, 12 Aug 2026 22:35:29 +0530
Subject: [PATCH] feat(score): display the trust tier alongside the numeric
 score

`mcp-observatory score` printed only the number and letter grade, so the tier
that turns it into a trust signal was invisible in the terminal.

  MCP Health Score: 87/100 (B)  Tier: Gold

Appended to the existing header rather than added as a new line, so the
existing formatting is untouched. Tier colours are deliberately distinct from
the grade colours (grade is green/yellow/red for pass/warn/fail), so the two
signals do not read as one: platinum cyan and gold yellow per the issue, silver
blue, bronze and unrated dim.

getTrustTier already exists in src/score.ts and is covered by tests, so this
adds only the rendering; no scoring logic changes.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
---
 src/commands/score.ts | 20 +++++++++++++++++++-
 1 file changed, 19 insertions(+), 1 deletion(-)

diff --git a/src/commands/score.ts b/src/commands/score.ts
index e57de09f..343d6eb7 100644
--- a/src/commands/score.ts
+++ b/src/commands/score.ts
@@ -4,6 +4,8 @@ import type { Command } from "commander";
 
 import { generateBadgeSvg } from "../badge.js";
 import { auditScore, resolveAuditTarget, runAudit } from "../audit.js";
+import { getTrustTier } from "../score.js";
+import type { TrustTier } from "../types.js";
 import {
   runTarget,
   writeRunArtifact,
@@ -46,6 +48,20 @@ function extractTrailingProfileScoreFlags(
   return { commandArgs, options: nextOptions };
 }
 
+/** Terminal colour per trust tier. Metal-ish, and distinct from the grade colour. */
+const TIER_COLORS: Record<TrustTier, string> = {
+  platinum: ANSI.cyan,
+  gold: ANSI.yellow,
+  silver: ANSI.blue,
+  bronze: ANSI.dim,
+  unrated: ANSI.dim,
+};
+
+/** "gold" -> "Gold". The tier is stored lowercase but reads as a label. */
+function formatTier(tier: TrustTier): string {
+  return tier.charAt(0).toUpperCase() + tier.slice(1);
+}
+
 export function registerScoreCommands(program: Command): void {
   // ── score ────────────────────────────────────────────────────────────
 
@@ -154,7 +170,9 @@ export function registerScoreCommands(program: Command): void {
         : score.grade === "C" ? ANSI.yellow
         : ANSI.red;
 
-      process.stdout.write(c(ANSI.bold, `  MCP Health Score: ${c(gradeColor, `${score.overall}/100`)} (${c(gradeColor, score.grade)})\n\n`));
+      const tier = getTrustTier(score.overall);
+
+      process.stdout.write(c(ANSI.bold, `  MCP Health Score: ${c(gradeColor, `${score.overall}/100`)} (${c(gradeColor, score.grade)})  Tier: ${c(TIER_COLORS[tier], formatTier(tier))}\n\n`));
 
       for (const dim of score.dimensions) {
         const filled = Math.round(dim.score / 5);