claude emporium

a (roman) plugin marketplace for claude code

install plugins synergy architecture contributing

^{roma victrix}

Six plugins that wrap standalone MCP servers with automation hooks, commands, and skills. No code duplication: plugins tell claude when to act, MCPs handle how.

╔═╤═══════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════╤═╗
║ │                                                                                                                                           │ ║
║ │ PLUGINS                                                                                                                                   │ ║
║ │                                                                                                                                           │ ║
║ │ ┌────────────────────┐ ┌────────────────────┐ ┌────────────────────┐ ┌────────────────────┐ ┌────────────────────┐ ┌────────────────────┐ │ ║
║ │ │   PRAETORIAN       │ │   HISTORIAN        │ │   ORACLE           │ │   GLADIATOR        │ │   VIGIL            │ │   ORATOR           │ │ ║
║ │ │ context guard      │ │ session memory     │ │ tool discovery     │ │ learn & adapt      │ │ file recovery      │ │ prompt rhetoric    │ │ ║
║ │ ├────────────────────┤ ├────────────────────┤ ├────────────────────┤ ├────────────────────┤ ├────────────────────┤ ├────────────────────┤ │ ║
║ │ │ hooks              │ │ hooks              │ │ hooks              │ │ hooks              │ │ hooks              │ │ hooks              │ │ ║
║ │ │ · pre-plan         │ │ · pre-websearch    │ │ · pre-plan         │ │ · post-error       │ │ · pre-bash         │ │ · pre-task         │ │ ║
║ │ │ · pre-compact      │ │ · pre-plan         │ │ · post-error       │ │ · stop             │ │                    │ │                    │ │ ║
║ │ │ · post-research    │ │ · pre-task         │ │                    │ │                    │ │ commands           │ │ commands           │ │ ║
║ │ │ · subagent-stop    │ │ · post-error       │ │ commands           │ │ commands           │ │ · /save-vigil      │ │ · /reprompt-       │ │ ║
║ │ │                    │ │                    │ │ · /search-oracle   │ │ · /review-         │ │ · /restore-vigil   │ │   orator           │ │ ║
║ │ │ commands           │ │ commands           │ │                    │ │   gladiator        │ │                    │ │                    │ │ ║
║ │ │ · /compact-        │ │ · /search-         │ │                    │ │                    │ │                    │ │                    │ │ ║
║ │ │   praetorian       │ │   historian        │ │                    │ │                    │ │                    │ │                    │ │ ║
║ │ │ · /restore-        │ │                    │ │                    │ │                    │ │                    │ │                    │ │ ║
║ │ │   praetorian       │ │                    │ │                    │ │                    │ │                    │ │                    │ │ ║
║ │ └────────────────────┘ └────────────────────┘ └────────────────────┘ └────────────────────┘ └────────────────────┘ └────────────────────┘ │ ║
║ │            │                      │                      │                      │                      │                      │           │ ║
║ │            ▼                      ▼                      ▼                      ▼                      ▼                      ▼           │ ║
║ │                                                                                                                                           │ ║
║ │ ┌────────────────────┐ ┌────────────────────┐ ┌────────────────────┐ ┌────────────────────┐ ┌────────────────────┐ ┌────────────────────┐ │ ║
║ │ │ praetorian-mcp     │ │ historian-mcp      │ │ oracle-mcp         │ │ gladiator-mcp      │ │ vigil-mcp          │ │ orator-mcp         │ │ ║
║ │ ├────────────────────┤ ├────────────────────┤ ├────────────────────┤ ├────────────────────┤ ├────────────────────┤ ├────────────────────┤ │ ║
║ │ │ save_context       │ │ search_convos      │ │ search             │ │ observe            │ │ vigil_save         │ │ orator_optimize    │ │ ║
║ │ │ · snapshot before  │ │ · full-text across │ │ · query 17 sources │ │ · record patterns  │ │ · named checkpoint │ │ · score 7 dims     │ │ ║
║ │ │   compaction       │ │   all sessions     │ │   in parallel      │ │                    │ │                    │ │ · apply 8 techs    │ │ ║
║ │ │                    │ │                    │ │                    │ │ reflect            │ │ vigil_list         │ │ · restructure      │ │ ║
║ │ │ restore_context    │ │ get_error_solns    │ │ browse             │ │ · cluster and      │ │ · show checkpoints │ │                    │ │ ║
║ │ │ · load previous    │ │ · how errors were  │ │ · by category or   │ │   recommend        │ │                    │ │ ── ── ── ── ──     │ │ ║
║ │ │   session state    │ │   resolved         │ │   popularity       │ │                    │ │ vigil_diff         │ │ dimensions:        │ │ ║
║ │ │                    │ │                    │ │                    │ │ ── ── ── ── ──     │ │ · preview changes  │ │ clarity            │ │ ║
║ │ │ search_compactns   │ │ find_similar       │ │ sources            │ │ storage:           │ │                    │ │ specificity        │ │ ║
║ │ │ · find past saves  │ │ · related past     │ │ · list registries  │ │ .claude/           │ │ vigil_restore      │ │ structure          │ │ ║
║ │ │                    │ │   questions        │ │   and status       │ │ gladiator/         │ │ · restore files    │ │ context            │ │ ║
║ │ │ list_compactions   │ │                    │ │                    │ │                    │ │                    │ │ examples           │ │ ║
║ │ │ · browse recent    │ │ find_file_context  │ │ ── ── ── ── ──     │ │                    │ │ vigil_delete       │ │ constraints        │ │ ║
║ │ │   snapshots        │ │ · track changes    │ │ smithery · glama   │ │                    │ │ · remove checkpoint│ │ tone               │ │ ║
║ │ │                    │ │                    │ │ npm · github       │ │                    │ │                    │ │                    │ │ ║
║ │ │ ── ── ── ── ──     │ │ find_tool_pattns   │ │ awesome-mcp        │ │                    │ │ ── ── ── ── ──     │ │ ── ── ── ── ──     │ │ ║
║ │ │ storage:           │ │ · agent workflows  │ │ mcp-registry       │ │                    │ │ storage:           │ │ in-memory          │ │ ║
║ │ │ .claude/           │ │                    │ │ + 11 more          │ │                    │ │ .claude/           │ │ zero storage       │ │ ║
║ │ │ praetorian/        │ │ search_plans       │ │                    │ │                    │ │ vigil/             │ │                    │ │ ║
║ │ │                    │ │ · past plans       │ │ in-memory cache    │ │                    │ │                    │ │                    │ │ ║
║ │ │                    │ │                    │ │ zero storage       │ │                    │ │                    │ │                    │ │ ║
║ │ │                    │ │ list_recent        │ │                    │ │                    │ │                    │ │                    │ │ ║
║ │ │                    │ │ · recent sessions  │ │                    │ │                    │ │                    │ │                    │ │ ║
║ │ └────────────────────┘ └────────────────────┘ └────────────────────┘ └────────────────────┘ └────────────────────┘ └────────────────────┘ │ ║
║ │                                                                                                                                           │ ║
║ │                                                                                                                               MCP SERVERS │ ║
╚═╧═══════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════╧═╝

install

Each plugin self-configures on install. MCP servers, hooks, commands, skills, and sibling detection all register automatically. All hooks default to enabled. See configuration to disable specific hooks or tune behavior.

Requirements:

Marketplace:

# Add this marketplace
/plugin marketplace add Vvkmnn/claude-emporium

Plugins:

# Each registers its MCP server, skills, hooks, settings, and detects siblings automatically
/plugin install claude-praetorian@claude-emporium
/plugin install claude-historian@claude-emporium
/plugin install claude-oracle@claude-emporium
/plugin install claude-gladiator@claude-emporium
/plugin install claude-vigil@claude-emporium
/plugin install claude-orator@claude-emporium

MCP servers:

# NOT REQUIRED: Each plugin will install their MCP server by themself
# However, you can choose to install just the MCP servers if you like
# Standalone has no hooks or synergy, but each ships with an optionally installable skill
# claude mcp add praetorian -- npx claude-praetorian-mcp  # https://github.com/Vvkmnn/claude-praetorian-mcp
# claude mcp add historian -- npx claude-historian-mcp    # https://github.com/Vvkmnn/claude-historian-mcp
# claude mcp add oracle -- npx claude-oracle-mcp          # https://github.com/Vvkmnn/claude-oracle-mcp
# claude mcp add gladiator -- npx claude-gladiator-mcp    # https://github.com/Vvkmnn/claude-gladiator-mcp
# claude mcp add vigil -- npx claude-vigil-mcp            # https://github.com/Vvkmnn/claude-vigil-mcp
# claude mcp add orator -- npx claude-orator-mcp          # https://github.com/Vvkmnn/claude-orator-mcp

plugins

praetorian

Context Guard. Saves and restores valuable context before compaction, after research, and when subagents complete.

mcp: claude-praetorian-mcp (storage at .claude/praetorian/)

commands:

/compact-praetorian · save insights after research, decisions, or subagent work
/restore-praetorian · load relevant past compactions at session start

tools:

praetorian_compact · save structured context: research, decisions, flow analysis
praetorian_restore · search or list recent compactions by query or type

hooks:

PreToolUse on EnterPlanMode · lists prior compactions before planning
PreCompact on * · saves context before compaction resets it
PostToolUse on WebFetch / WebSearch · prompts to compact research findings
SubagentStop on * · prompts to compact subagent results

historian

Session searcher. Checks past sessions before you do redundant research, planning, or debugging to find solutions or insights we can recycle.

mcp: claude-historian-mcp (9 search tools across conversations, errors, files, plans)

commands:

/search-historian · search past sessions for solutions, patterns, or context

tools:

search_conversations · search conversation history, .claude files, and tasks
find_file_context · find all conversations related to a specific file
find_similar_queries · find previous similar questions with enhanced matching
get_error_solutions · find solutions for specific errors
list_recent_sessions · browse recent sessions with activity summaries
extract_compact_summary · get intelligent summary of a session with key insights
find_tool_patterns · analyze tool usage patterns and workflows
search_plans · search plan files for past approaches and decisions
search_config · search .claude config files for guidance and patterns

hooks:

PreToolUse on WebSearch / WebFetch · checks history before web research
PreToolUse on EnterPlanMode · searches past plans before planning
PreToolUse on Task · checks tool patterns before launching agents
PostToolUse on Bash · suggests error solutions after failures

oracle

Tool recommender. Searches 17 sources in parallel to find relevant skills, plugins, and MCP servers.

mcp: claude-oracle-mcp (smithery, glama, npm, github, awesome-mcp-servers, and more)

commands:

/search-oracle · search all sources for skills, plugins, or MCP servers

tools:

search · search by query with optional type and semantic filters
browse · browse by category or popularity
sources · show available data sources and their status

hooks:

PreToolUse on EnterPlanMode · searches for relevant tools before planning
PostToolUse on Bash · searches for tools that solve errors

gladiator

Continuous learner. Observes tool failures and prompts reflection at session end to evolve rules, hooks, and skills incrementally.

mcp: claude-gladiator-mcp (storage at .claude/gladiator/)

commands:

/review-gladiator · review and cluster observations into actionable patterns

tools:

gladiator_observe · record a pattern worth learning from, deduplicates by hash
gladiator_reflect · query and cluster observations with recommendations

hooks:

PostToolUse on Bash / Edit / Write · observes failure patterns (silent on success)
Stop on * · prompts reflection if unprocessed observations exist

vigil

Quick saver. Saves checkpoints before dangerous operations, diffs changes, restores files safely to augment /rewind.

mcp: claude-vigil-mcp (storage at .claude/vigil/)

commands:

/save-vigil · create a named checkpoint of tracked files
/restore-vigil · restore files from a previous checkpoint

tools:

vigil_save · save a named checkpoint with optional description
vigil_list · list checkpoints, drill into one for file details
vigil_diff · diff current files against a checkpoint
vigil_restore · restore files from a checkpoint
vigil_delete · delete a checkpoint or all checkpoints

hooks:

PreToolUse on Bash · auto-quicksaves before destructive commands (rm, mv, etc.)

orator

Prompt coach. Deterministically scores and restructures prompts using Anthropic best practices. No LLM calls, no network, in-memory only.

mcp: claude-orator-mcp (in-memory, zero storage)

commands:

/reprompt-orator · score and optimize a prompt with detailed feedback

tools:

orator_optimize · analyze and optimize a prompt, returns score metrics and applied techniques

hooks:

PreToolUse on Task · suggests optimization for under-specified subagent prompts

architecture

Each plugin is a thin wrapper. hooks inject prompts that trigger MCP tools at high-impact moments. plugins contain no business logic: they tell claude when to search, save, or restore. the MCP servers handle the actual work.

claude-emporium/
├── .claude-plugin/
│   ├── marketplace.json                    plugin registry (6 plugins)
│   └── plugin.json                         root manifest
│
├── plugins/
│   ├── claude-praetorian/                  context guard → praetorian-mcp
│   │   ├── .claude-plugin/plugin.json      declares praetorian MCP server
│   │   ├── hooks/
│   │   │   ├── hooks.json                  hook event bindings
│   │   │   ├── post-research.js            compact after WebSearch/WebFetch
│   │   │   ├── post-subagent.js            compact after Task completes
│   │   │   ├── pre-compact.js              remind to compact before context reset
│   │   │   └── pre-plan.js                 list prior compactions before planning
│   │   ├── commands/
│   │   │   ├── compact-praetorian.md       /compact
│   │   │   └── restore-praetorian.md       /compact-status
│   │   ├── skills/claude-praetorian/SKILL.md
│   │   └── README.md
│   │
│   ├── claude-historian/                   session memory → historian-mcp
│   │   ├── .claude-plugin/plugin.json      declares historian MCP server
│   │   ├── hooks/
│   │   │   ├── hooks.json
│   │   │   ├── pre-websearch.js            check history before web research
│   │   │   ├── pre-planning.js             search past plans before planning
│   │   │   ├── pre-task.js                 check tool patterns before agents
│   │   │   └── post-error.js               suggest past error solutions
│   │   ├── commands/search-historian.md    /history
│   │   ├── skills/claude-historian/SKILL.md
│   │   └── README.md
│   │
│   ├── claude-oracle/                      tool discovery → oracle-mcp
│   │   ├── .claude-plugin/plugin.json      declares oracle MCP server
│   │   ├── hooks/
│   │   │   ├── hooks.json
│   │   │   ├── pre-planning.js             search registries before planning
│   │   │   └── post-error.js               find tools that solve errors
│   │   ├── commands/search-oracle.md       /discover
│   │   ├── skills/claude-oracle/SKILL.md
│   │   └── README.md
│   │
│   ├── claude-gladiator/                   learn & adapt → gladiator-mcp
│   │   ├── .claude-plugin/plugin.json      declares gladiator MCP server
│   │   ├── hooks/
│   │   │   ├── hooks.json
│   │   │   ├── stop.js                     prompt reflection at session end
│   │   │   └── post-error.js               observe failure patterns
│   │   ├── commands/review-gladiator.md    /observe · /reflect
│   │   ├── skills/claude-gladiator/SKILL.md
│   │   └── README.md
│   │
│   ├── claude-vigil/                       file recovery → vigil-mcp
│   │   ├── .claude-plugin/plugin.json      declares vigil MCP server
│   │   ├── hooks/
│   │   │   ├── hooks.json
│   │   │   └── pre-bash.js                 quicksave before rm/reset/checkout
│   │   ├── commands/
│   │   │   ├── save-vigil.md               /save
│   │   │   └── restore-vigil.md            /restore · /snapshots
│   │   ├── skills/claude-vigil/SKILL.md
│   │   └── README.md
│   │
│   ├── claude-orator/                      prompt rhetoric → orator-mcp
│   │   ├── .claude-plugin/plugin.json      declares orator MCP server
│   │   ├── hooks/
│   │   │   ├── hooks.json
│   │   │   └── pre-task.js                 optimize prompts before subagents
│   │   ├── commands/reprompt-orator.md     /optimize
│   │   ├── skills/claude-orator/SKILL.md
│   │   └── README.md
│   │
│   └── shared/
│       └── utils.js                        loadSettings · siblings · readStdin · emit
│
├── mcp/
│   └── .mcp.json                           all 6 MCP servers (standalone install)
│
├── logo/                                   plugin SVG icons
├── .github/                                issue templates · PR template · CI workflows
├── scripts/readme.py                       README generation
└── README.md

each plugin.json declares its MCP server:
  { "mcpServers": { "praetorian": { "command": "npx", "args": ["claude-praetorian-mcp"] } } }

each hook script follows the same pattern:
  readStdin() → loadSettings() → siblings() → emit(<system-reminder>)

runtime storage:
  project/.claude/praetorian/   context snapshots
  project/.claude/gladiator/    observations + reflections
  project/.claude/vigil/        file checkpoints
  ~/.claude/settings.json       enabledPlugins (auto) · claude-emporium (manual)

zero overhead, by design:

no external API calls. no network requests from hooks or plugins
no background processes. hooks run inline and exit (~1ms each)
no databases. praetorian, gladiator, and vigil store to project-local dirs (.claude/). oracle, historian, and orator compute in-memory with TTL caching
no dependencies beyond Node.js (ships with Claude Code)
all hook scripts are pure Node.js, single-purpose, and stateless
built for claude, by claude

configuration

Sibling detection: /plugin install adds each plugin to enabledPlugins in ~/.claude/settings.json. Hooks read this to detect siblings and coordinate automatically. For example, historian's pre-research hook will note "praetorian will compact this" when both are installed, and oracle's error hook will mention "historian can search past solutions" if historian is present. This is what sibling detection looks like:

// ~/.claude/settings.json
{
  // ...model, permissions, apiKey, etc.
  "enabledPlugins": {
    // ...other installed plugins
    "claude-praetorian@claude-emporium": true, // detected as sibling by all other plugins
    "claude-historian@claude-emporium": true, // detected as sibling by all other plugins
    "claude-oracle@claude-emporium": true,
    // ...added automatically by /plugin install
  },
  // ...
}

Hook settings: every hook checks a boolean setting before running. All default to true. To disable any hook, add overrides under the claude-emporium key in ~/.claude/settings.json:

// ~/.claude/settings.json
{
  "claude-emporium": {
    "suggest_siblings": false, // stop suggesting uninstalled emporium plugins

    "claude-praetorian": {
      "auto_compact_research": false, // don't prompt to compact after WebFetch/WebSearch
      "auto_compact_subagent": false, // don't prompt to compact after subagent completes
      "check_compactions_before_plan": false, // don't list prior compactions before planning
      "remind_compact": false, // don't remind to compact before context reset
    },
    "claude-historian": {
      "search_before_web": false, // don't check history before web research
      "search_before_plan": false, // don't search past plans before planning
      "search_before_task": false, // don't check tool patterns before launching agents
      "search_after_error": false, // don't suggest error solutions after failures
    },
    "claude-oracle": {
      "search_before_plan": false, // don't search for relevant tools before planning
      "search_after_error": false, // don't search for tools that solve errors
    },
    "claude-gladiator": {
      "observe_after_failure": false, // don't record failure patterns
      "reflect_before_stop": false, // don't prompt reflection at session end
    },
    "claude-vigil": {
      "auto_quicksave": false, // don't quicksave before destructive commands
    },
    "claude-orator": {
      "optimize_subagent_prompts": false, // don't suggest prompt optimization before Task
    },
  },
}

Only include the settings you want to change. Omitted keys keep their defaults (true). The full defaults are defined in shared/utils.js.

synergy

Each plugin works standalone. when multiple are installed, they detect siblings at runtime and coordinate, usually without any extra configuration.

%%{init: {'theme': 'base', 'htmlLabels': true, 'themeVariables': {'primaryColor': '#f5f5f5', 'primaryTextColor': '#1a1a1a', 'primaryBorderColor': '#cccccc', 'lineColor': '#555555', 'edgeLabelBackground': '#f0f0f0', 'fontSize': '16px'}, 'flowchart': {'nodeSpacing': 80, 'rankSpacing': 70, 'curve': 'basis', 'padding': 20}}}%%
flowchart TD
    P["⚜️<br/>PRAETORIAN<br/>context guard"]:::gold
    H["📜<br/>HISTORIAN<br/>session memory"]:::scroll
    V["🏺<br/>VIGIL<br/>file recovery"]:::amphora
    O["🔮<br/>ORACLE<br/>tool discovery"]:::crystal
    G["⚔️<br/>GLADIATOR<br/>learn & adapt"]:::steel
    R["🪶<br/>ORATOR<br/>prompt rhetoric"]:::quill

    P ----|"  plans & context  "| H
    V ----|"  quicksave  "| P
    P ----|"  compactions  "| O
    H ----|"  solutions + tools  "| O
    O ----|"  error tools  "| G
    H ----|"  past solutions  "| G
    R ----|"  scored prompts  "| H
    R ----|"  compact results  "| P
    R ----|"  find tools  "| O
    R ----|"  observe techniques  "| G
    R ----|"  checkpoint  "| V

    classDef gold fill:#fff8e1,stroke:#f9a825,stroke-width:2px,color:#5d4037
    classDef scroll fill:#fff3e0,stroke:#ef6c00,stroke-width:2px,color:#4e342e
    classDef amphora fill:#fbe9e7,stroke:#e64a19,stroke-width:2px,color:#bf360c
    classDef crystal fill:#f3e5f5,stroke:#8e24aa,stroke-width:2px,color:#4a148c
    classDef steel fill:#eceff1,stroke:#546e7a,stroke-width:2px,color:#263238
    classDef quill fill:#efebe9,stroke:#795548,stroke-width:2px,color:#3e2723

Enhanced behaviors when siblings are detected:

event	plugin	alone	with siblings
plan	⚜️ praetorian	lists prior compactions	+ 📜 past plans, 🔮 finds tools
plan	📜 historian	searches past plans	+ 🔮 also searches for tools
plan	🔮 oracle	searches 17 registries	+ 📜 past plans, ⚜️ compactions
compact	⚜️ praetorian	snapshots context	+ 🔮 discoveries included
error	📜 historian	searches past solutions	+ 🔮 finds tools for this error class
error	🔮 oracle	searches for error-solving tools	+ 📜 checks past solutions
error	⚔️ gladiator	observes failure pattern	+ 📜 enriches with past solutions
research	📜 historian	checks history first	+ ⚜️ compacts findings after
subagent	⚜️ praetorian	prompts to compact results	+ ⚔️ observes subagent outcome patterns
task	📜 historian	checks tool patterns	+ 🔮 suggests tools for the task
task	🪶 orator	optimizes vague prompts	+ 📜 searches past scored prompts
stop	⚔️ gladiator	prompts reflection	+ 📜 and 🔮 deepen analysis
bash	🏺 vigil	quicksaves before destructive	+ ⚜️ preserves context alongside

Detection is automatic via one fs.readFileSync call (~1ms), and falls back gracefully to solo mode if settings are missing or siblings are not dedicated.

contributing

Bug fixes, improvements, and documentation PRs are welcome, as are inspirations for new plugins and MCPs that could improve synergy and coverage. See CONTRIBUTING.md for full guidelines.

Issues: use the issue templates. Bug reports, feature requests, and plugin ideas each have their own form, but please check open issues for duplicates first.
PRs: Fork, branch, and follow the PR template. Good contributions include better hook triggers, bug fixes, documentation, and performance improvements, and any novelties that improve experience or perforamnce.

New plugins: Please Open a plugin idea issue; always looking for plugins that have clear trigger events, often wrap specific MCPs, or provide obvious synergy with their sibling plugins. Above all, always looking to solve a concrete user pain for other Claude users.

troubleshooting

plugin not triggering? Verify the mcp server is running: claude mcp list
mcp not found? Install via npm: claude mcp add <name> -- npx <package>
hook errors? Check that node.js is available and CLAUDE_PLUGIN_ROOT is set.

license

MIT

_{The Consummation of Empire — Thomas Cole, 1836}

"alea iacta est" | the die is cast
_{— Julius Caesar, crossing the Rubicon}

claude-emporium

claude emporium

install

plugins

praetorian

historian

oracle

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