claude-praetorian

Agent Building

Context preservation with cross-session memory — hooks prompt compaction at high-impact moments, siblings enrich what gets saved

QUICK START

How to use this skill

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Prompt to paste

I want to install this Agent Skill for this project in Codex.

Source SKILL.md: https://github.com/majiayu000/claude-skill-registry/blob/HEAD/skills/context-management/claude-praetorian/SKILL.md

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First, summarize what it does, its dependencies, license status if identifiable, and any risks. Show the exact files you propose to add under .agents/skills/claude-praetorian/. Do not write files or run scripts until I approve.

After I approve, install the complete skill folder, including required referenced files, into that project location. Verify it is discoverable, then tell me its actual invocation name and how to use it. Do not claim it is installed until you have verified it.

Copying this prompt does not install or run the skill. Review third-party files before use. Codex skill guide

Praetorian Plugin

Context guard. Saves and restores valuable context at the right moments — before planning, after research, when subagents complete.

Hooks

Hook	When	Action
PreToolUse(EnterPlanMode)	Before planning	Lists prior compactions, suggests restoring
PreCompact	Before context resets	Prompts to save decisions/insights/findings
PostToolUse(WebFetch/WebSearch)	After web research	Prompts to compact as `web_research`
SubagentStop	After subagent completes	Prompts to compact as `task_result`

Commands

Command	Description
`/compact-praetorian [type] [title]`	Save current context
`/restore-praetorian [query]`	Load previous context

Workflows

Compact (standalone)

Identify what's worth saving (research, decisions, patterns)
praetorian_compact(type, title, key_insights, refs)
Verify with praetorian_restore(title) to confirm it saved

Compact (with siblings)

If historian active: search_plans() to check if past context already covers this
If oracle active: include any tool discoveries in key_insights
praetorian_compact(type, title, key_insights, refs)
If vigil active: files are also checkpointed via quicksave

Restore (standalone)

praetorian_restore() — list recent compactions
praetorian_restore("query") — search for specific topic
Summarize findings for the current task

Restore (with siblings)

praetorian_restore("query") — load praetorian context
If historian active: search_conversations("query") for broader session history
If oracle active: search("query") for tools relevant to the restored context
Combine all sources into a unified briefing

Sibling Synergy

Sibling	Value	How
Historian	Past plans surface during planning compactions	`search_plans()` enriches pre-plan hook
Oracle	Tool discoveries included in compactions	Oracle results added to `key_insights`
Gladiator	Observations inform what to compact	Failure patterns highlight important context
Vigil	Files checkpointed alongside context	Quicksave protects files during compaction

Requires

claude mcp add praetorian -- npx claude-praetorian-mcp