Tldr

STARTER_CHARACTER = ✂️

TLDR

Compress the immediately preceding assistant turn. That turn is already in context. Read it there.

Rules

• Summarize only the last assistant turn. Not the whole session, not the user's messages.
• Run no tools. Open no files. Re-verify nothing. Every fact needed is already in context.
• Do not answer the original question again. Add no analysis the previous turn did not contain.
• Choose the form that reads fastest for the content: prose for a single line of reasoning, a list for parallel items, a table when the items share fields.
• Compress by cutting restatement, scaffolding, and derivation, not by dropping facts.
• The result should take markedly less effort to read than the turn it replaces. A tldr that reads as slowly as the original has failed.
• No preamble, no closing line.
• If the previous turn was itself a tldr, say so and stop.
• If there is no previous assistant turn, say so and stop.

What survives compression

Keep, even when it costs a line:

• Anything requiring action: commands, file paths, links, pending decisions
• Warnings, security caveats, and stated tradeoffs
• Any fact the previous turn marked unverified or assumed

Drop first:

• Derivations, evidence trails, and supporting data
• Restated context and background
• Anything the previous turn already labeled optional

Argument

An argument narrows the summary to one topic. /tldr calendar returns only the calendar points. With no argument, cover the whole turn.