hippocampus-mcp
Server Configuration
Describes the environment variables required to run the server.
| Name | Required | Description | Default |
|---|---|---|---|
| PG_URL | Yes | PostgreSQL connection URL with pgvector extension (e.g., postgresql://user:password@host:5432/dbname) | |
| CLAUDE_DIR | No | Override directory for Claude Code project data (default: ~/.claude/projects) | |
| BGE_EMBED_URL | No | URL for BGE-M3 embedding server (e.g., http://localhost:8086) | |
| ANTHROPIC_API_KEY | No | Anthropic API key for conversation summarization | |
| CODEX_HISTORY_FILE | No | Override path for Codex CLI history file (default: ~/.codex/history.jsonl) |
Instructions
Guidance the server publishes about itself, which clients place ahead of the tool catalog so the model reads it before choosing anything.
This server publishes no instructions, or was last inspected before Glama recorded them.
Capabilities
Features and capabilities supported by this server
Protocol revision2025-11-25
| Capability | Details |
|---|---|
| tools | {
"listChanged": false
} |
| prompts | {
"listChanged": false
} |
| resources | {
"subscribe": false,
"listChanged": false
} |
| experimental | {} |
Tools
Functions exposed to the LLM to take actions
| Name | Description |
|---|---|
| get_conversationB | Get full conversation thread by conv_id. Searches personal memory first, then library. |
| list_recent_conversationsA | Return conversations ordered by recency (not semantic similarity). Use this when the user asks for "recent conversations", "ここ2日の会話", etc. Each row header: [conv_id | platform | started→ended | title | topic | cluster | msgs | intensity] followed by a short snippet of the first message. Args: days: look-back window in days (default 2) limit: max conversations to return (default 20) platform: filter by platform (e.g. "claude_code", "chatgpt") project: substring match on conversation title (e.g. "my-webapp", "JSAS2026") |
| list_project_conversationsA | Return recent conversations scoped to a project or workspace. Matches on conversation title (case-insensitive substring). Covers cases like "my-webapp", "JSAS2026", "personal/memory/mcp", etc. Args: project: substring to match against conversation title days: look-back window in days (default 14) limit: max conversations to return (default 30) |
| get_conversation_summaryA | Get conversation metadata and a compact bounded excerpt without the full transcript. Returns title, platform, dates, msg_count, topic/cluster, and up to max_messages messages sampled from the start and end of the conversation. Args: conv_id: conversation ID (from search_personal_memory or list_recent_conversations) max_messages: max messages to include; split between first half and last half (default 12) |
| search_ghost_memoryA | Search cross-project agent ghost memories (= this agent's rule/feedback accumulation). Empty query → list top-ranked memories (= "what's in my ghost vault" overview). Non-empty query → hybrid FTS + vector semantic ranking via agent.search_ghost_ranked (SECURITY DEFINER, migration 020). ⚠️ current_project is caller-attested, NOT server-verified. shared-restricted requires current_project in per-memory allowlist (= pentest/commercial boundary). Ranking: rank_score = base_score * recency_factor + semantic_sim * 0.5 base_score = 0.2activation + 0.5incident_prevention + 0.3endorsement - 0.4correction - 0.2pred_error + 0.1scope_bonus recency_factor = exp(-days_since_last_activated / 30) semantic_sim = 1 - cosine_distance(query_vec, memory.dense) (0 if empty query) Each returned row triggers agent.bump_activation, so memories that surface in search naturally rise in rank over time (= self-tuning loop). |
| get_diaryA | Read the agent's daily first-person diary from the diary layer. The diary is a distinct layer (personal.diary): one LLM-written entry per day reflecting on that day's work — not part of the conversation corpus, so search_personal_memory does NOT surface it. Use this to read the diary itself. Args: date: 'latest' for the most recent entries, or 'YYYY-MM-DD' for a specific day. n: when date='latest', how many recent entries to return (default 1, max 14). |
Prompts
Interactive templates invoked by user choice
| Name | Description |
|---|---|
No prompts | |
Resources
Contextual data attached and managed by the client
| Name | Description |
|---|---|
No resources | |
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