paulca / paulca.com Public

Cap post line length at 80ch for readability (#3)

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>

Paul Campbell 3 weeks ago 893cf56c34f7d491173aea2f1417b5c256a2cfdd parent 439e12d

5 files changed, +23 −7

AGENTS.md +3 −3
docs/ai.html +10 −2
docs/blog/using-an-llm-off-the-grid/index.html +1 −1
src/_data/ledger.json +8 −0
src/_includes/post.njk +1 −1

diff --git a/AGENTS.md b/AGENTS.md

index 6e4c61a..358dfaa 100644

--- a/AGENTS.md

+++ b/AGENTS.md

@@ -27,9 +27,9 @@ Follow the recipes below exactly.

## Rules

1. **No styling.** No CSS files, no `<style>` blocks, no new inline styles, no

- classes, no JavaScript. Semantic HTML and Markdown only. The one inline

- style on `<article>` in `post.njk` is the only styling on the site; leave

- it alone.

+ classes, no JavaScript. Semantic HTML and Markdown only. The single

+ `max-width:80ch` inline style on `<article>` in `post.njk` (a line-length

+ cap for readability) is the only styling on the site; leave it alone.

2. **Never edit anything in `docs/` by hand.** Change `src/`, then rebuild.

3. **Post Paul's words verbatim.** When Paul gives you text for a blog post,

do not rewrite, correct, or embellish it.

diff --git a/docs/ai.html b/docs/ai.html

index 29491dc..7b237af 100644

--- a/docs/ai.html

+++ b/docs/ai.html

@@ -36,6 +36,14 @@ first.</p>

</tr>

+<tr>

+ <td>July 25, 2026</td>

+ <td>“Maybe we should add an 80ch limit so that it's a bit easier to read?”</td>

+ <td>Put a single <code>max-width:80ch</code> inline style on the post template's <code><article></code> — a line-length cap, no centering — and updated <code>AGENTS.md</code> to match.</td>

+ <td>~4 Wh</td>

+ <td>~1.6 g</td>

+ <td>Ten minutes of a 25 W monitor</td>

+</tr>

<tr>

<td>“Lose it. The pi post worked great.” — “it” being the one inline style left on the post template.</td>

@@ -142,8 +150,8 @@ first.</p>

</tr>

</table>

-<p><b>Running total:</b> ~156 Wh,

-~62 g CO₂e —

+<p><b>Running total:</b> ~160 Wh,

+~64 g CO₂e —

about the energy it takes to boil a litre and a half of water, or the emissions of driving a petrol car about 350 metres.</p>

<h2>Method</h2>

diff --git a/docs/blog/using-an-llm-off-the-grid/index.html b/docs/blog/using-an-llm-off-the-grid/index.html

index 04c7db8..9627971 100644

--- a/docs/blog/using-an-llm-off-the-grid/index.html

+++ b/docs/blog/using-an-llm-off-the-grid/index.html

@@ -11,7 +11,7 @@

-<article>

+<article style="max-width:80ch">

<small>Paul Campbell • July 25, 2026</small>

<h1>Using an LLM "off-the-grid"</h1>

diff --git a/src/_data/ledger.json b/src/_data/ledger.json

index cbe1a8b..a913f87 100644

--- a/src/_data/ledger.json

+++ b/src/_data/ledger.json

@@ -9,6 +9,14 @@

"co2_g": 0.8,

"comparison": "A half-hour of a 5 W LED bulb"

+ {

+ "date": "July 25, 2026",

+ "prompt_html": "“Maybe we should add an 80ch limit so that it's a bit easier to read?”",

+ "outcome_html": "Put a single <code>max-width:80ch</code> inline style on the post template's <code><article></code> — a line-length cap, no centering — and updated <code>AGENTS.md</code> to match.",

+ "wh": 4,

+ "co2_g": 1.6,

+ "comparison": "Ten minutes of a 25 W monitor"

+ },

{

"date": "July 25, 2026",

"prompt_html": "“Lose it. The pi post worked great.” — “it” being the one inline style left on the post template.",

diff --git a/src/_includes/post.njk b/src/_includes/post.njk

index f377c9b..5c2372b 100644

--- a/src/_includes/post.njk

+++ b/src/_includes/post.njk

@@ -3,7 +3,7 @@ layout: base.njk

---

-<article>

+<article style="max-width:80ch">

<small>Paul Campbell • {{ page.date | longDate }}</small>

<h1>{{ title }}</h1>