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feat: add ECC statusline observability hooks

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Salvages the useful statusline/context monitor work from stale PR #1504 while preserving the current continuous-learning hook runner wiring.

Adds the metrics bridge, context monitor, statusline script, shared cost/session bridge utilities, and tests. Fixes the reviewed false loop-detection hash collision for non-file tools, avoids default-session cost inflation, sanitizes statusline task lookup, and records hook payload session IDs in cost-tracker.
This commit is contained in:
Affaan Mustafa
2026-05-11 23:30:56 -04:00
committed by Affaan Mustafa
parent e9c8845833
commit 940135ea47
14 changed files with 1744 additions and 33 deletions
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33
scripts/hooks/cost-tracker.js
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@@ -8,11 +8,9 @@
'use strict';
const path = require('path');
const {
ensureDir,
appendFile,
getClaudeDir,
} = require('../lib/utils');
const { ensureDir, appendFile, getClaudeDir } = require('../lib/utils');
const { estimateCost } = require('../lib/cost-estimate');
const { sanitizeSessionId } = require('../lib/session-bridge');
const MAX_STDIN = 1024 * 1024;
let raw = '';
@@ -22,23 +20,6 @@ function toNumber(value) {
return Number.isFinite(n) ? n : 0;
}
function estimateCost(model, inputTokens, outputTokens) {
// Approximate per-1M-token blended rates. Conservative defaults.
const table = {
'haiku': { in: 0.8, out: 4.0 },
'sonnet': { in: 3.0, out: 15.0 },
'opus': { in: 15.0, out: 75.0 },
};
const normalized = String(model || '').toLowerCase();
let rates = table.sonnet;
if (normalized.includes('haiku')) rates = table.haiku;
if (normalized.includes('opus')) rates = table.opus;
const cost = (inputTokens / 1_000_000) * rates.in + (outputTokens / 1_000_000) * rates.out;
return Math.round(cost * 1e6) / 1e6;
}
process.stdin.setEncoding('utf8');
process.stdin.on('data', chunk => {
if (raw.length < MAX_STDIN) {
@@ -55,7 +36,11 @@ process.stdin.on('end', () => {
const outputTokens = toNumber(usage.output_tokens || usage.completion_tokens || 0);
const model = String(input.model || input._cursor?.model || process.env.CLAUDE_MODEL || 'unknown');
const sessionId = String(process.env.ECC_SESSION_ID || process.env.CLAUDE_SESSION_ID || 'default');
const sessionId =
sanitizeSessionId(input.session_id) ||
sanitizeSessionId(process.env.ECC_SESSION_ID) ||
sanitizeSessionId(process.env.CLAUDE_SESSION_ID) ||
'default';
const metricsDir = path.join(getClaudeDir(), 'metrics');
ensureDir(metricsDir);
@@ -66,7 +51,7 @@ process.stdin.on('end', () => {
model,
input_tokens: inputTokens,
output_tokens: outputTokens,
estimated_cost_usd: estimateCost(model, inputTokens, outputTokens),
estimated_cost_usd: estimateCost(model, inputTokens, outputTokens)
};
appendFile(path.join(metricsDir, 'costs.jsonl'), `${JSON.stringify(row)}\n`);