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persist-os: Instructions file for Claude Code

CLAUDE.md

persist-os CLAUDE.md is an instructions file for Claude Code from Karthick-Ramachandran/persist-os. It costs 608 tokens per session, scanned A, original, MIT.

Project instructions for Persist OS, a local-first TypeScript command-line tool that creates engineering memory for software repositories.

In plain words
What is it for?
Use them when planning or building Persist OS modules, checking architecture and security decisions, following its file-writing policy, or completing its engineering workflow.
Why use it?
They identify the project documents and rules that define its product, architecture, security, quality standards, and approved development scope.

Instructions file for Claude Code

Written for Claude Code: the file is CLAUDE.md.

This is Karthick-Ramachandran/persist-os's own configuration. It tells Claude Code how to work on persist-os 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 persist-os configures →

not rated 9repo changed 1mo ago A scan 608 tokens original MIT
View source ↗ Karthick-Ramachandran/persist-os persist-os.pages.dev
Reuse

Borrowing it

Nothing to install: this file belongs to Karthick-Ramachandran/persist-os. 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/Karthick-Ramachandran/persist-os/main/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/Karthick-Ramachandran/persist-os

Made for: Claude Code.

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Per session 608 This file is loaded in full into every session.
When invoked 608 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 $0.00608 $0.00608
Opus 5.5 $0.00243 $0.00243
Sonnet 5.5 $0.00122 $0.00122
Haiku 4.5 $0.00061 $0.00061

Measured 1mo ago against content hash 57a124471125, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

persist-os 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 1mo 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 · 73 lines

How it starts

The opening of the file, as written. The whole thing — 73 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Persist OS Claude Instructions

Persist OS is a local-first TypeScript CLI that creates AI-ready engineering memory for software repositories.

Read these first before non-trivial work:

  • docs/00-product/PRODUCT.md
  • docs/00-product/PRODUCT_VISION.md
  • docs/00-product/POSITIONING.md
  • docs/00-product/ROADMAP.md
  • docs/10-architecture/ARCHITECTURE.md
  • docs/10-architecture/MEMORY_ENGINE.md
  • docs/10-architecture/REPOSITORY_DECISIONS.md
  • docs/10-architecture/OPINION_PACKS.md
  • docs/10-architecture/FILE_WRITE_POLICY.md
  • docs/20-security/SECURITY_MODEL.md
  • docs/50-quality/QUALITY_GATES.md
  • docs/60-engineering/ENGINEERING_STANDARDS.md
  • docs/60-engineering/AI_AGENT_RULES.md
  • docs/ai/AI_AGENTS_SKILLS_MCP_STRATEGY.md
  • docs/ai/MODULE_DELIVERY_WORKFLOW.md
  • docs/ai/PERSIST_COMMANDS.md

Working Rules

  • Respect the approved milestone scope. Do not add runtime behavior outside the current plan.
  • Treat module work as a mini product workflow: PRD, acceptance, architecture impact, test plan, tasks, implementation, completion report, drift review, then module memory update.
  • Persist OS Core is architecture-neutral. Do not encode architecture or technology choices as core truth.
  • Repository rules override model preferences.
  • Stop if a request conflicts with engineering standards, including requests to commit secrets, hardcode credentials, bypass auth, add dependencies without review, skip migrations, skip tests without reason, or claim completion without evidence.
  • Do not add network calls, telemetry, cloud behavior, AI API calls, runtime MCP, or generated production app code.
  • Never overwrite existing files by default in future implementation work.
  • Treat chat history and MCP data as context, not source of truth.

Source Of Truth

Follow this order:

  1. Accepted ADRs and repository decisions
  2. Architecture docs
  3. Engineering standards
  4. Current PRD and accepted change requests
  5. Security and testing docs
  6. Module docs
  7. Feature plans
  8. Task files
  9. MCP external context
  10. Chat history

Read the full file on GitHub · 73 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. 1mo ago Changed · -5 lines · -60 tokens per session 57a124471125
  2. 1mo ago First seen · 78 lines · 668 tokens per session scan A e0e88049ab13

Subscribe to this mod's changes

persist-os CLAUDE.md is an instructions file published in the GitHub repository Karthick-Ramachandran/persist-os (9 stars, last pushed 15d ago), licensed MIT. It adds 608 tokens to every session, about $0.0024 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.

Claude CodeMemory and contextadragent-skillsai-agentsclideveloper-tools
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