project-memory

project-memory is a skill for Claude Code, Codex from AmanKtyr/Tailor. It costs 32 tokens per session (572 once invoked), scanned A, original, MIT.

A project-memory system that keeps indexed project facts in .ai/ files, such as the stack, APIs, and database details. It compares that cached information with source code, which remains the source of truth.

In plain words
What is it for?
Use it when maintaining .ai/ memory files, synchronizing project documentation, repairing drift, or managing the agent’s available context. It guides which memory documents to read first.
Why use it?
It helps an AI agent use project context without rereading everything and detects when documentation no longer matches the code. This reduces stale instructions and wasted context.

Skill for Claude CodeCodex

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.

agentmods
npx agentmods add skills/amanktyr/tailor/project-memory
Any agent
npx skills add AmanKtyr/Tailor --skill project-memory
Clone the repo
git clone --depth 1 https://github.com/AmanKtyr/Tailor

Made for: Claude Code, Codex.

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 project-memory

README.md
[![agentmods](https://agentmods.dev/badge/skills/amanktyr/tailor/project-memory.svg)](https://agentmods.dev/skills/amanktyr/tailor/project-memory)
Your own site
<a href="https://agentmods.dev/skills/amanktyr/tailor/project-memory"><img src="https://agentmods.dev/badge/skills/amanktyr/tailor/project-memory.svg" alt="Measured on agentmods" height="20"></a>
Per session 32 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 572 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00032 $0.00572
Opus 5 $0.00016 $0.00286
Sonnet 5 $0.00006 $0.00114
Haiku 4.5 $0.00003 $0.00057

Measured 4d ago against content hash b94173bb4ede, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

project-memory 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 4d 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.

skills/project-memory/SKILL.md · 48 lines

How it starts

The opening of the file, as written. The whole thing — 48 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Project Memory Skill

Activate this skill when reading, creating, updating, or repairing .ai/ memory files, resolving documentation drift, or managing agent context windows.

Operational Principle: Project memory is an indexed cache of project facts. Source code is the ultimate ground truth.


1. Project Memory Hierarchy & Source of Truth

When conflicting information is detected between files:

  1. Source of Truth 1 (Highest): Verifiable source code, database schemas (schema.prisma, models.py, migrations/), and package manifests (package.json, Cargo.toml, go.mod).
  2. Source of Truth 2: Project Memory Files (.ai/STACK.md, .ai/API.md, .ai/DATABASE.md).
  3. Source of Truth 3 (Lowest): Outdated inline comments, legacy markdown notes, or unverified chat instructions.

If memory conflicts with source code: Trust the source code, flag the drift, and immediately update the memory document.


2. Progressive Disclosure Rules (Token Optimization)

To minimize context token consumption and maintain maximum LLM reasoning capacity:

  • Entry Point: Always read .ai/CONSTITUTION.md and .ai/INDEX.md first.
  • Domain Documents (Read strictly on demand):
    • Architecture decisions: .ai/ARCHITECTURE.md, .ai/DECISIONS.md
    • UI components and design tokens: .ai/UI.md, .ai/CONVENTIONS.md
    • Endpoints, contracts, and payloads: .ai/API.md
    • Schemas, migrations, and ORMs: .ai/DATABASE.md
    • Installed packages and governance: .ai/DEPENDENCIES.md
    • Security policies and secret management: .ai/SECURITY.md
    • Verification runners and commands: .ai/TESTING.md

3. Drift Detection & Live Repair Workflow

When finishing any non-trivial coding task or executing /update-project-memory:

  1. Check if dependencies were added, removed, or upgraded. If so, synchronize .ai/DEPENDENCIES.md.
  2. Check if new database models or migrations were introduced. If so, synchronize .ai/DATABASE.md.
  3. Check if new API endpoints or route contracts were created. If so, synchronize .ai/API.md.
  4. Check if new architectural decisions were adopted. If so, record an ADR in .ai/DECISIONS.md.
  5. Verify that .ai/INDEX.md accurately references all active domain memory files.

Read the full file on GitHub · 48 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. 4d ago First seen · 48 lines · 32 tokens per session scan A b94173bb4ede

Subscribe to this mod's changes

project-memory is a skill published in the GitHub repository AmanKtyr/Tailor (3 stars, last pushed 11d ago), licensed MIT. It adds 32 tokens to every session and 572 once invoked, about $0.0002 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 2026-08-31.

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