diff --git a/AGENTS.md b/AGENTS.md
new file mode 100644
index 0000000..b198f99
--- /dev/null
+++ b/AGENTS.md
@@ -0,0 +1,108 @@
+# AGENTS.md — AI Agent Context for token-deathclock
+
+This file gives AI coding agents (GitHub Copilot, Claude, ChatGPT, etc.) the context
+they need to work effectively on this repository.
+
+---
+
+## Project Purpose
+
+**Token Deathclock** is a static GitHub Pages site that visualises the environmental cost
+of global AI token consumption. It shows live counters, environmental milestone cards,
+a Chart.js growth chart with projections, and a prompt/PR quality scoring section.
+
+**Live site:** `https://nitrocode.github.io/token-deathclock/`
+
+---
+
+## Repository Layout
+
+```
+.
+├── index.html              ← GitHub Pages entry point (static HTML shell)
+├── styles.css              ← Dark/light theme, animations, responsive layout
+├── death-clock-core.js     ← Pure functions only — no DOM, safe to unit-test
+├── script.js               ← All DOM manipulation, Chart.js wiring, RAF loop
+├── package.json            ← Jest config & devDependencies (no runtime deps)
+├── tests/
+│   └── death-clock.test.js ← 75 Jest unit tests for death-clock-core.js
+└── .github/
+    └── workflows/
+        ├── deploy.yml      ← Deploys index.html etc. to GitHub Pages on push to main
+        └── test.yml        ← Runs `npm run test:ci` on every push / PR
+```
+
+---
+
+## Architecture Rules
+
+| Rule | Detail |
+|------|--------|
+| **Core / DOM split** | `death-clock-core.js` must never import or reference the DOM. All DOM work belongs in `script.js`. |
+| **No runtime dependencies** | The live site loads only Chart.js from a CDN. There are no npm runtime packages. |
+| **CommonJS + browser dual export** | `death-clock-core.js` exports via `module.exports` for Jest and via `window.DeathClockCore` for the browser. Do not change this pattern without updating both consumers. |
+| **HTML escaping** | All dynamic strings rendered into `innerHTML` must pass through `escHtml()` in `script.js`. Never assign untrusted data directly to `innerHTML`. |
+| **Counter anchor** | `getCurrentTokens()` in `script.js` computes elapsed time from `BASE_DATE_ISO` (exported by the core module), **not** from page-load time. `pageLoadTime` is reserved for the session counter only. |
+
+---
+
+## Key Constants (death-clock-core.js)
+
+| Constant | Value | Meaning |
+|----------|-------|---------|
+| `BASE_TOKENS` | 65 × 10¹⁵ | Estimated cumulative tokens as of `BASE_DATE_ISO` |
+| `TOKENS_PER_SECOND` | 100 000 000 | Estimated global AI inference rate |
+| `BASE_DATE_ISO` | `'2026-04-14T07:09:04Z'` | Anchor timestamp for the counter |
+
+When updating data, change **all three** together so they stay consistent.
+
+---
+
+## Running Tests
+
+```bash
+npm ci            # install devDependencies
+npm test          # jest --coverage (interactive)
+npm run test:ci   # jest --ci --coverage (CI mode; fails on coverage drop)
+```
+
+**Coverage thresholds** (enforced in CI):
+
+| Metric | Threshold |
+|--------|-----------|
+| Lines | 80 % |
+| Functions | 80 % |
+| Branches | 70 % |
+
+The current measured coverage is ≈ 96 % statements / 88 % branches — do not let it drop below the thresholds.
+
+---
+
+## Making Changes
+
+### Changing milestone data
+Edit the `MILESTONES` array in `death-clock-core.js`. Each object requires:
+`id`, `name`, `icon`, `tokens`, `shortDesc`, `description`, `consequence`, `followingEvent`, `color`, `darkColor`.
+Keep the array sorted in ascending `tokens` order — the constants test enforces this.
+
+### Adding a new pure utility function
+1. Add the function to `death-clock-core.js`.
+2. Export it via the `DeathClockCore` object at the bottom of the file.
+3. Add unit tests in `tests/death-clock.test.js`.
+4. Import it in `script.js` via the destructuring at the top of the IIFE.
+
+### Changing the visual theme
+Edit `styles.css`. CSS custom properties for colours live in `:root[data-theme="dark"]` and `:root[data-theme="light"]`. The theme toggle is managed by `applyTheme()` in `script.js`.
+
+### Deployment
+Merging to `main` triggers the `deploy.yml` workflow automatically. No manual steps are required after the one-time GitHub Pages source has been set to **GitHub Actions** in repository settings.
+
+---
+
+## What NOT to Do
+
+- Do **not** add runtime npm packages — the site must remain fully static.
+- Do **not** introduce DOM references in `death-clock-core.js`.
+- Do **not** remove or weaken the `escHtml()` guard on dynamic HTML.
+- Do **not** skip tests when adding new pure functions to the core module.
+- Do **not** change `BASE_TOKENS` / `TOKENS_PER_SECOND` / `BASE_DATE_ISO` independently — update all three as a set with a comment explaining the source.
diff --git a/README.md b/README.md
index 5937838..60edaa9 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # AI Death Clock 💀
 
-> **Live site:** `https://nitrocode.github.io/game/`
+> **Live site:** `https://nitrocode.github.io/token-deathclock/`
 
 A GitHub Pages visualisation that shows the environmental cost of global AI token consumption — featuring live counters, milestone tracker, token-growth chart with projections, and a prompt/PR scoring section.
 
@@ -26,8 +26,8 @@ Created by **RB**.
 
 ```bash
 # Clone and open
-git clone https://github.com/nitrocode/game.git
-cd game
+git clone https://github.com/nitrocode/token-deathclock.git
+cd token-deathclock
 # Serve with any static server, e.g.:
 npx serve .
 # Then open http://localhost:3000
@@ -54,7 +54,7 @@ Tests are in `tests/death-clock.test.js` and cover all pure functions in `death-
 1. Go to **Settings → Pages** in this repository.
 2. Under **Source**, select **GitHub Actions**.
 3. Push or re-run the `Deploy to GitHub Pages` workflow.
-4. The site will be live at `https://nitrocode.github.io/game/`.
+4. The site will be live at `https://nitrocode.github.io/token-deathclock/`.
 
 > ⚠️ The workflow file (`.github/workflows/deploy.yml`) is already included.
 > Only step 2 (enabling GitHub Actions as the Pages source) needs to be done manually once in the repository settings.
@@ -119,4 +119,48 @@ Tests are in `tests/death-clock.test.js` and cover all pure functions in `death-
 | CO₂ per tree (~21 kg/year) | US Forest Service estimates |
 | Historical token growth | OpenAI usage blog, Epoch AI, AI Index 2024 |
 
-> All figures are illustrative estimates intended to communicate scale, not precise measurements.
\ No newline at end of file
+> All figures are illustrative estimates intended to communicate scale, not precise measurements.
+
+---
+
+## Repo Score & Roadmap
+
+### Score: 72 / 100 — Grade: C+
+
+| Category | Score | Notes |
+|---|---|---|
+| **Code quality** | 17/20 | Clean separation of concerns; pure-function core; consistent style |
+| **Test coverage** | 18/20 | 96 % statement coverage on the tested module; 75 passing tests |
+| **Documentation** | 12/20 | Good README; AGENTS.md added; missing CONTRIBUTING.md, LICENSE |
+| **CI / CD** | 9/10 | Test + deploy workflows both present and functional |
+| **Accessibility** | 7/10 | ARIA live regions, roles, and values; dark/light toggle |
+| **Security** | 6/10 | `escHtml` guards all dynamic content; no CSP headers |
+| **Bug count** | 3/10 | `getCurrentTokens()` used `pageLoadTime` instead of `BASE_DATE_ISO`, causing the total counter to restart at `BASE_TOKENS` on every page load |
+| **Community files** | 0/10 | No LICENSE, no CONTRIBUTING.md, no SECURITY.md |
+
+### Roadmap
+
+#### Priority 1 — Correctness (immediate)
+- [x] **Fix total-counter anchor** — `getCurrentTokens()` now uses `BASE_DATE_ISO` so the counter reflects true elapsed time since the data anchor, not since the page was loaded.
+
+#### Priority 2 — Community & compliance
+- [ ] Add a `LICENSE` file (MIT or Apache-2.0 recommended).
+- [ ] Add `CONTRIBUTING.md` with a pull-request checklist and coding conventions.
+- [ ] Add `SECURITY.md` with a vulnerability-disclosure policy.
+- [ ] Add a `CODEOWNERS` file to set review requirements.
+
+#### Priority 3 — Security hardening
+- [ ] Add a `Content-Security-Policy` meta tag in `index.html` to restrict inline scripts and limit allowed CDN origins (Chart.js, Google Fonts).
+- [ ] Pin the Chart.js CDN URL to a known-good SRI hash.
+- [ ] Add Dependabot config (`.github/dependabot.yml`) for automatic npm and GitHub Actions version bumps.
+
+#### Priority 4 — Test completeness
+- [ ] Add integration / smoke tests for `script.js` DOM logic using `jest-environment-jsdom`.
+- [ ] Cover the two uncovered lines in `death-clock-core.js` (lines 251, 443-444).
+- [ ] Add a test that asserts `getCurrentTokens()` grows with time rather than resetting on reload.
+
+#### Priority 5 — Developer experience
+- [ ] Add `.nvmrc` to pin the Node.js version.
+- [ ] Add `.editorconfig` or a Prettier config for consistent formatting.
+- [ ] Add a `"homepage"` field in `package.json` matching the GitHub Pages URL.
+- [ ] Add a `CHANGELOG.md` to track releases.
\ No newline at end of file
diff --git a/script.js b/script.js
index 90bce8e..e29eaa7 100644
--- a/script.js
+++ b/script.js
@@ -11,6 +11,7 @@
   const {
     BASE_TOKENS,
     TOKENS_PER_SECOND,
+    BASE_DATE_ISO,
     HISTORICAL_DATA,
     MILESTONES,
     PROMPT_SCORING,
@@ -29,12 +30,13 @@
 
   // ---- State -----------------------------------------------
   const pageLoadTime = Date.now();
+  const baseDateTime = new Date(BASE_DATE_ISO).getTime();
   let currentTheme = 'dark';
   let chartInstance = null;
 
   // ---- Helpers ---------------------------------------------
   function getCurrentTokens() {
-    const elapsed = (Date.now() - pageLoadTime) / 1000;
+    const elapsed = (Date.now() - baseDateTime) / 1000;
     return BASE_TOKENS + TOKENS_PER_SECOND * elapsed;
   }