Hooks
What memstack runs automatically, and when. A hook is a command Claude Code fires at a fixed moment, without you asking for it.
> /plugin marketplace add cwinvestments/memstack > /plugin install memstack@cwinvestments-memstack
Ships with memstack. Installing the plugin gets these hooks.
What fires, and when
SessionStart
Fires once when a session begins, and again after a context compaction. It is where a plugin sets up its environment, or restores state the compaction dropped.
- Matches
startup|clear|compact"${CLAUDE_PLUGIN_ROOT}/hooks/run-hook.cmd" session-start
PreToolUse
- Matches
Read|Bash|Grep"${CLAUDE_PLUGIN_ROOT}/hooks/run-hook.cmd" secret-read-guard - Matches
Bash"${CLAUDE_PLUGIN_ROOT}/hooks/run-hook.cmd" junk-write-guard
UserPromptSubmit
Fires before Claude sees each prompt you send. A plugin can use it to inject context, so the same instruction reaches the model every turn instead of only at session start.
"${CLAUDE_PLUGIN_ROOT}/hooks/run-hook.cmd" report-marker"${CLAUDE_PLUGIN_ROOT}/hooks/run-hook.cmd" workdir-guard
Stop
"${CLAUDE_PLUGIN_ROOT}/hooks/run-hook.cmd" verify-gate
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