clickbridge // PRIMERS

Primers

The useful 20% of anything — the smallest reading that lets you actually do the thing, or actually reference it correctly. One confusion cleared per page, everything else deliberately left out.

10 primers
APIs & MCP — What's the Same, What Isn't
an API is a contract written for a programmer ; MCP is a contract written for a model . MCP does not replace APIs — it is a standard wrapper that sits on top of them,…
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Claude Code Sessions Primer — One Session, One Thread of Work
"Could I name this session for the one thing it's doing?" If the honest name is a project folder — ! Main , General Coding — it's a holding tank. If it's a sentence —…
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Front-End Primer — Modern Stacks for Vibecoding
"Is this a single-file job or a components job?" — everything above is downstream of that split. Single file = speed and portability; components (.tsx) = reuse, types,…
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GPT-6 Astra Primer — What Actually Changed
the headline numbers are model gains, but the numbers that change what you can build are harness gains. Astra's biggest practical delta is that the scaffolding around…
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Langfuse — the useful 20%
Langfuse does not see what Claude sees. The Claude Code hook ships each turn's prompt, reply, tool calls and token counts, but not CLAUDE.md , skills or auto-loaded…
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Ready Player One, the useful 20%
The movie is not a condensed version of the book — it's a different puzzle wearing the same setup. Spielberg's 2018 film keeps Halliday's hidden Easter egg and its three…
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Snow Crash, the useful 20%
The word “metaverse” did not start at a tech company. Neal Stephenson coined it — and, separately, landed on “avatar” in its modern sense — in this 1992 novel, to…
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Star Trek's first episode, the useful 20%
There isn't one answer, and that's the whole trap. Three different episodes can honestly claim “first”: The Cage was filmed first and rejected as too cerebral for 1964…
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The Roadless Rule — Background & Factful Read
the Forest Service cannot maintain the roads it already has. The 2001 rule was, at its origin, a decision to stop extending a network the agency was already failing to…
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Walden, the useful 20%
He wasn't a hermit. Walden Pond sat about a mile and a half from downtown Concord — Thoreau walked into town every day or two, friends walked out to see him, and (this…
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