mem-search

mem-search is a skill for Claude Code from ajsai47/holyclaude. It costs 42 tokens per session (1,028 once invoked), scanned A, a copy of mem-search, MIT.

A search tool for a persistent memory database that stores work from earlier coding sessions. It helps find past fixes, decisions, and discoveries across sessions.

In plain words
What is it for?
Use it to check whether an issue was solved before, find how a previous task was handled, or retrieve work from a specific time or project.
Why use it?
It removes the need to remember which earlier session solved a problem or to search through every past conversation in full.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the holyclaude plugin — 11 skills, 9 commands, 13 agents, 6 hooks, 1 MCP server, 5 plugins shipped together

Good fit Use it to check whether an issue was solved before, find how a previous task was handled, or retrieve work from a specific time or project.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/ajsai47/holyclaude/mem-search
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add ajsai47/holyclaude --skill mem-search
Clone the repo
git clone --depth 1 https://github.com/ajsai47/holyclaude

Made for: Claude Code.

Or install holyclaude, the plugin that ships this one along with the rest of its 11 skills, 9 commands, 13 agents, 6 hooks, 1 MCP server, 5 plugins.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for mem-search

README.md
[![agentmods](https://agentmods.dev/badge/skills/ajsai47/holyclaude/mem-search/github.svg)](https://agentmods.dev/skills/ajsai47/holyclaude/mem-search)
Your own site
<a href="https://agentmods.dev/skills/ajsai47/holyclaude/mem-search"><img src="https://agentmods.dev/badge/skills/ajsai47/holyclaude/mem-search/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for mem-search

Your own site · 80×15
<a href="https://agentmods.dev/skills/ajsai47/holyclaude/mem-search"><img src="https://agentmods.dev/badge/skills/ajsai47/holyclaude/mem-search.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 42 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,028 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin 89% copy Near-identical to another mod in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00042 $0.01028
Opus 5 $0.00021 $0.00514
Sonnet 5 $0.00008 $0.00206
Haiku 4.5 $0.00004 $0.00103

Measured 10d ago against content hash e8ee241cb198, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

mem-search scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 10d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

Origin

This is a copy

89% identical to mem-search — 52 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

skills/memory/mem-search/SKILL.md · 128 lines

How it starts

The opening of the file, as written. The whole thing — 128 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Search past work across all sessions. Simple workflow: search -> filter -> fetch.

When to Use

Use when users ask about PREVIOUS sessions (not current conversation):

  • "Did we already fix this?"
  • "How did we solve X last time?"
  • "What happened last week?"

3-Layer Workflow (ALWAYS Follow)

NEVER fetch full details without filtering first. 10x token savings.

Step 1: Search - Get Index with IDs

Use the search MCP tool:

search(query="authentication", limit=20, project="my-project")

Returns: Table with IDs, timestamps, types, titles (~50-100 tokens/result)

| ID | Time | T | Title | Read |
|----|------|---|-------|------|
| #11131 | 3:48 PM | 🟣 | Added JWT authentication | ~75 |
| #10942 | 2:15 PM | 🔴 | Fixed auth token expiration | ~50 |

Parameters:

  • query (string) - Search term
  • limit (number) - Max results, default 20, max 100
  • project (string) - Project name filter
  • type (string, optional) - "observations", "sessions", or "prompts"
  • obs_type (string, optional) - Comma-separated: bugfix, feature, decision, discovery, change
  • dateStart (string, optional) - YYYY-MM-DD or epoch ms
  • dateEnd (string, optional) - YYYY-MM-DD or epoch ms
  • offset (number, optional) - Skip N results
  • orderBy (string, optional) - "date_desc" (default), "date_asc", "relevance"

Step 2: Timeline - Get Context Around Interesting Results

Use the timeline MCP tool:

timeline(anchor=11131, depth_before=3, depth_after=3, project="my-project")

Or find anchor automatically from query:

timeline(query="authentication", depth_before=3, depth_after=3, project="my-project")

Returns: depth_before + 1 + depth_after items in chronological order with observations, sessions, and prompts interleaved around the anchor.

Parameters:

  • anchor (number, optional) - Observation ID to center around
  • query (string, optional) - Find anchor automatically if anchor not provided
  • depth_before (number, optional) - Items before anchor, default 5, max 20
  • depth_after (number, optional) - Items after anchor, default 5, max 20
  • project (string) - Project name filter

Read the full file on GitHub · 128 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 10d ago First seen · 128 lines · 42 tokens per session scan A e8ee241cb198

Subscribe to this mod's changes

mem-search is a skill published in the GitHub repository ajsai47/holyclaude (11 stars, last pushed 5mo ago), licensed MIT. It adds 42 tokens to every session and 1,028 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. It is 89% identical to mem-search, differing in 52 lines, and is treated as a copy.

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