One Skill Per Deck: Why I Stopped Bundling Presentation Templates

Most presentation template packs fail the same way: you install one giant bundle, then spend twenty minutes deleting eleven decks you will never use to find the one you actually want. I used to ship a single growing bundle. This week I split it apart, and the reason is embarrassingly simple: a template you have to hunt for is a template you will not use.

A deck skill should behave like a good tool, not a warehouse. One install, one deck, one job. When the agent opens the skill, it should know exactly which visual system it is working in — the colors, the grid, the slide order — without reading past fifteen other systems first. That is the whole argument, and it shows up in four places:

1. Install cost. A single-deck skill is a small folder: a SKILL.md, one .pptx, a detail file describing every editable slot, and a build script. Nothing else competes for the agent's attention.
2. Edit precision. With one deck, every slot in the detail file maps to exactly one shape on one slide. There is no "which deck's title slide did that edit land on" ambiguity, and a full 12-slide run can be verified slot by slot.
3. Style discipline. A bundle tempts you to reuse one deck's accent color in another. A standalone deck forces you to finish the palette: one paper, one ink, one signal color, and nothing borrowed.
4. Replacement cost. If a deck ages badly, you retire one skill. The other fifteen keep working untouched.

The four decks I split out this week make the point concretely, because they could not be more different from each other:

• Night Observatory — a midnight annual review: deep ink, warm paper, amber signal, star-chart lines and orbit rings. Built for data that deserves a quiet room, not a dashboard.
• Marrakech Souk — a quarterly market review: deep teal, sand paper, saffron and terracotta, arched cards and diamond tile strips. Loud in a warm way, never in a neon way.
• Aizome Indigo — a collection retrospective: indigo papers, seigaiha wave lines, sashiko dashes, one vermilion seal block. Restraint as the whole personality.
• Herbarium Botanical — a specimen-catalog deck: cream paper, moss ink, olive and terracotta, double-ruled specimen plates with Latin names. The kind of deck that makes a quarterly review feel archived, not just presented.

Each one is 12 slides, each slot addressable, each build verified end to end with a fictional brand so no real company gets used as demo filler. And each one installs alone: if you only need the indigo deck, you install the indigo deck, and your agent never learns the other three exist.

The practical test I now run before shipping any deck skill: hand the agent a fictional company, ask for all twelve slides, and check every slot. If a single slot comes back with placeholder text, the deck does not ship. A bundle makes that test twelve times harder to run honestly, because a failure in deck nine hides behind successes in decks one through eight. Splitting the bundle made the test cheap enough to actually run every time.

If you maintain a skill library of your own, try this: pick the one template your users actually open, ship it alone, and watch whether anyone misses the bundle. In my case, nobody did.