What is retyc-cli CLAUDE.md?

Project instructions for retyc-cli, a Go command-line tool for the RETYC platform that manages authentication, file transfers, data rooms, and an MCP server.

Working on CLI commands, authentication, uploads and downloads, data-room operations, MCP serving, and release version information.

They give agents the repository structure, build modes, and versioning rules needed to change the CLI safely.

How retyc/retyc-cli configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to retyc/retyc-cli. 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/retyc/retyc-cli/master/CLAUDE.md

Clone the repo

git clone --depth 1 https://github.com/retyc/retyc-cli

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.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/retyc/retyc-cli/claude-md/github.svg)](https://agentmods.dev/instructions/retyc/retyc-cli/claude-md)

Your own site

<a href="https://agentmods.dev/instructions/retyc/retyc-cli/claude-md"><img src="https://agentmods.dev/badge/instructions/retyc/retyc-cli/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.

Your own site · 80×15

<a href="https://agentmods.dev/instructions/retyc/retyc-cli/claude-md"><img src="https://agentmods.dev/badge/instructions/retyc/retyc-cli/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 4,655 This file is loaded in full into every session.

When invoked 4,655 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.

Model	Per session	Once invoked
Fable 5.1	$0.04655	$0.04655
Opus 5.5	$0.01862	$0.01862
Sonnet 5.5	$0.00931	$0.00931
Haiku 4.5	$0.00466	$0.00466

Measured 3d ago against content hash a2acbbc6c290, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

retyc-cli 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 3d 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 · 288 lines

How it starts

The opening of the file, as written. The whole thing — 288 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CLAUDE.md — retyc-cli

Go CLI for the RETYC platform. Module: github.com/retyc/retyc-cli. Go 1.26.

This file is a map and a list of rules. Behaviour is documented for users in doc/ (commands.md, configuration.md, webdav.md, retycfs.md, mcp.md, mcpb.md, docker.md, ci-cd.md) and for developers in the code comments: read them before changing a subsystem, and update them with it. Do not copy their content here.

Layout

main.go                  # → cmd.Execute()
cmd/                     # cobra commands, flag/viper binding, output; thin adapters
  root.go                #   root flags, initConfig, PersistentPreRunE, exitCode
  common.go output.go errorjson.go   # shared helpers, --json output, error kinds
  auth.go transfer.go dataroom.go admin*.go config.go version.go
  mcp*.go                #   mcp serve (stdio) + manifest for the MCPB bundle
  fs.go                  #   `fs` group: parent of `webdav serve` and `mount`
  webdav*.go             #   WebDAV adapter over internal/vfs
  mount*.go              #   fs mount (mount_linux.go: runMount / serveMount)
  serve_common.go metastore.go observability.go   # shared by webdav serve and fs mount
internal/
  api/                   # REST client: transport.go (only http.Transport), retry.go (429),
                         #   errorcodes.go, one file per API area
  auth/                  # OIDC device flow, refresh, GetValidToken
  config/                # viper defaults, Config structs, env.go (env-only settings), envfile.go
  crypto/                # AGE helpers (PQ only)
  keyring/               # Linux session keyring cache of the decrypted identity
  service/               # business logic shared by commands and MCP (sessions, uploads, …)
  vfs/                   # file-tree service shared by WebDAV and FUSE (caches, mutations, I/O)
    metastore/           #   MetaStore interface; memstore/ (default), redisstore/ (shared)
  retycfs/               # FUSE driver (linux build tag), go-fuse v2 `fs` API
  metrics/               # Prometheus collectors of `fs mount`, all retycfs_*
  telemetry/             # OpenTelemetry tracing of `fs mount`; env.go is the only reader of OTEL_*
scripts/                 # build-mcpb.sh, benches, start-jaeger.sh, start-redis.sh,
                         #   redis-cache-dump (diagnostic, not released)

Read the full file on GitHub · 288 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.

3d ago Changed · +1 lines · +38 tokens per session a2acbbc6c290
22d ago Changed · -492 lines · -8,106 tokens per session 99e39990b19e
23d ago Changed · +10 lines · +255 tokens per session 5876d0668522
25d ago Changed · +119 lines · +2,618 tokens per session 8260b2f4749d
1mo ago Changed · +7 lines · +127 tokens per session 2fc936f909fc
1mo ago Changed · +32 lines · +664 tokens per session 003b2789dda3
1mo ago Changed · +4 lines · +116 tokens per session 6a0f6dae11fe
1mo ago Changed · +4 lines · +90 tokens per session 9da62f99b6d5
1mo ago Changed · +8 lines · +162 tokens per session 7d355158b3f8
1mo ago First seen · 595 lines · 8,691 tokens per session scan A 3f9e4a5e9372

Subscribe to this mod's changes

retyc-cli CLAUDE.md is an instructions file published in the GitHub repository retyc/retyc-cli (22 stars, last pushed yesterday), licensed MIT. It adds 4,655 tokens to every session, about $0.0186 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 2026-08-30.

cli dataroom docker encryption file-sharing retyc

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retyc-cli: Instructions file for Claude Code