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.
npx agentmods add instructions/bbhunterpk-ux/memctx/claude-mdgit clone --depth 1 https://github.com/bbhunterpk-ux/memctxWrote 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.
[](https://agentmods.dev/instructions/bbhunterpk-ux/memctx/claude-md)<a href="https://agentmods.dev/instructions/bbhunterpk-ux/memctx/claude-md"><img src="https://agentmods.dev/badge/instructions/bbhunterpk-ux/memctx/claude-md.svg" alt="Measured on agentmods" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00116 | $0.00116 |
| Opus 5 | $0.00058 | $0.00058 |
| Sonnet 5 | $0.00023 | $0.00023 |
| Haiku 4.5 | $0.00012 | $0.00012 |
Grade A, and why
memctx 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 5d 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.
What it actually says
Recent session history (auto-updated by ClaudeContext)
Last session: Database Schema UI Coverage Analysis — COMPLETED Completed: Analyzed database schema to identify all stored fields, Audited ProjectDetail and SessionDetail UI components, Compared API queries against UI display logic Up next: Add token usage display to ProjectDetail component Remember: Token usage data exists in DB but completely hidden from users Updated automatically. View full history at http://localhost:9999
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.
- 5d ago First seen · 10 lines · 116 tokens per session scan A 6af808353212
memctx CLAUDE.md is an instructions file published in the GitHub repository bbhunterpk-ux/memctx (26 stars, last pushed 2d ago), licensed MIT. It adds 116 tokens to every session, about $0.0006 per session on Opus 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 2026-08-30.
Other instructions, from other repositories
claude-capsule-kit CLAUDE.md
Instructions for arpitnath/claude-capsule-kit, covering capsule kit v4.0, rules, context system (capsule), wikilink layer and docs.
ai-agents push-lock.instructions.md
Instructions for rjmurillo/ai-agents, covering one push lock path, must, must not, historical measurements and commit guard.
ai-agents plugin-version-bump.instructions.md
Instructions for rjmurillo/ai-agents, covering plugin manifests carry no version, why, what a pr does now, if instructions say to bump, they are stale and checking.
ai-agents security.instructions.md
Instructions for rjmurillo/ai-agents, covering security file rules, must, should, must not and references.
ai-agents canonical-source-mirror.instructions.md
Instructions for rjmurillo/ai-agents, covering canonical source mirror rule, what this rule binds, what the first commit must do, what the reviewer must verify and stricter than canonical: defending divergence.
Claude-PHP-SDK copilot-instructions.md
Instructions for claude-php/Claude-PHP-SDK, covering copilot instructions for claude php sdk, project goals, architecture & core components, directory structure (to be created) and key architectural patterns.