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claude-lens: Instructions file for Claude Code

CLAUDE.md

claude-lens CLAUDE.md is an instructions file for Claude Code from sanchez314c/claude-lens. It costs 274 tokens per session, scanned A, original, MIT.

Instructions for claude-lens, a tool that lets Claude Code search memories from past coding sessions. It stores searchable session data in a local SQLite database, a small file-based database.

In plain words
What is it for?
Use it to develop, test, or maintain claude-lens, including its search database, session indexer, and MCP tools.
Why use it?
It makes earlier conversations, tool calls, and coding context easier to find instead of relying on memory or manual file searching.

Instructions file for Claude Code

Written for Claude Code: the file is CLAUDE.md. Also seen: reads .claude/ paths; mentions subagents; mentions Claude Code.

This is sanchez314c/claude-lens's own configuration. It tells Claude Code how to work on claude-lens itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything claude-lens configures →

not rated 0repo 2mo ago A scan 274 tokens original MIT
View source ↗ sanchez314c/claude-lens
Reuse

Borrowing it

Nothing to install: this file belongs to sanchez314c/claude-lens. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/sanchez314c/claude-lens/main/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/sanchez314c/claude-lens

Made for: Claude Code.

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.

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README.md
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Your own site
<a href="https://agentmods.dev/instructions/sanchez314c/claude-lens/claude-md"><img src="https://agentmods.dev/badge/instructions/sanchez314c/claude-lens/claude-md/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.

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<a href="https://agentmods.dev/instructions/sanchez314c/claude-lens/claude-md"><img src="https://agentmods.dev/badge/instructions/sanchez314c/claude-lens/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 274 This file is loaded in full into every session.
When invoked 274 The same file — it is already loaded in full.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found 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 $0.00274 $0.00274
Opus 5.5 $0.00110 $0.00110
Sonnet 5.5 $0.00055 $0.00055
Haiku 4.5 $0.00027 $0.00027

Measured 2mo ago against content hash ae60c91700e7, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

claude-lens CLAUDE.md 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 2mo 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.

CLAUDE.md · 31 lines

What it actually says

claude-lens

MCP server giving Claude Code searchable memory across all past sessions.

Architecture

  • SQLite + FTS5 for instant full-text search
  • Indexes 12,000+ session JSONL files from ~/.claude/projects/
  • Incremental indexing via file mtime tracking
  • 9 search/query tools exposed via MCP stdio transport

Dev

  • Plain JavaScript ESM (type: "module"), no TypeScript, no build step
  • Dependencies: @modelcontextprotocol/sdk, better-sqlite3
  • Tests: npm test (node --test)

Key files

  • src/index.js — MCP server entry point + startup indexing
  • src/database.js — SQLite schema, FTS5, prepared statements, query methods
  • src/indexer.js — JSONL parser, tool call extraction, incremental index
  • src/tools.js — 9 MCP tool definitions with zod schemas

DB location

~/.claude-lens/claude-lens.db (WAL mode, better-sqlite3 synchronous)

Constraints

  • No embeddings v1 (FTS5 handles 90% of queries)
  • Tool output truncated to 500 chars
  • Index on MCP server startup only
  • Subagent sessions skipped
  • Logs go to stderr (stdout reserved for MCP protocol)
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. 2mo ago First seen · 31 lines · 274 tokens per session scan A ae60c91700e7

Subscribe to this mod's changes

claude-lens CLAUDE.md is an instructions file published in the GitHub repository sanchez314c/claude-lens (0 stars, last pushed 2mo ago), licensed MIT. It adds 274 tokens to every session, about $0.0011 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

DatabasesMemory and context
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