Cc Strategic Compaction — Development skill for Claude Code

Claude Strategic Compaction Mod

Claude decides when to compact, and compacts. Every other plugin for this only suggests and leaves you to type `/compact`.

claude plugin marketplace add sergiopalacio/cc-strategic-compaction

claude plugin install cc-strategic-compaction@cc-strategic-compaction --config askFromPercent=40

`/compaction` opens the pane. Set `askFromPercent` before anything else: at its default of 0 the judge runs every turn from the first, spending a model call to answer a question whose answer is obviously no.

When it fires

Not when the task is finished, and not when the window is full. Claude already watches the window.

The question is whether anything in the conversation exists **only** here. A measurement taken and never written down is lost on compaction. A file on disk is not, because it can be read again.

Two things can ask, and each has its own switch in the pane:

• Judge — at the end of a turn, from the rules in hooks/rules.ts plus your own.
• MCP Tool — mcp__cc-strategic-compaction__compact, which the model calls on itself after writing something down.

Nothing else can: no noun on `$`, no file to touch. A shell hook reaches this by reminding the model to call the tool. Turn the judge off and the agent's own instructions are the only thing deciding; turn the tool off and only the rules are.

A subagent still running blocks both. There is a 15 minute floor between compactions.

Settings

key	default	what it does
judgeEnabled	true	ask the judge at the end of each turn
toolEnabled	true	register the tool the agent calls on itself
askFromPercent	0	percent of the window below which nothing is judged
compactWhen	""	your rules, in your own words
rulesMode	append	append adds yours to the packaged rules, override replaces them
toolThreshold	0	compact after N tool calls of any kind. Unrelated to `toolEn