Borrowing it
Nothing to install: this file belongs to shuaiyuan17/tomo. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/shuaiyuan17/tomo/main/CLAUDE.mdgit clone --depth 1 https://github.com/shuaiyuan17/tomoWrote 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/shuaiyuan17/tomo/claude-md)<a href="https://agentmods.dev/instructions/shuaiyuan17/tomo/claude-md"><img src="https://agentmods.dev/badge/instructions/shuaiyuan17/tomo/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.
<a href="https://agentmods.dev/instructions/shuaiyuan17/tomo/claude-md"><img src="https://agentmods.dev/badge/instructions/shuaiyuan17/tomo/claude-md.svg" alt="Reviewed on agentmods" width="80" 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 | $0.03956 | $0.03956 |
| Opus 5 | $0.01978 | $0.01978 |
| Sonnet 5 | $0.00791 | $0.00791 |
| Haiku 4.5 | $0.00396 | $0.00396 |
Grade A, and why
tomo 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 yesterday.
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.
How it starts
The opening of the file, as written. The whole thing — 164 lines — stays where its author put it; the contents beside it link to each section on GitHub.
CLAUDE.md
What is Tomo
Tomo is a personal AI assistant that lives in messaging apps (Telegram, iMessage). It runs as a long-running Node.js daemon on the user's machine, powered by the Claude Agent SDK. Users interact with it exclusively through chat — there is no web UI or terminal UI at runtime.
Published to npm as tomo-ai. Installed globally via npm install -g tomo-ai.
Commands
npm run build # tsc — compile src/ → dist/
npm run dev # tsx watch, foreground with hot reload
npm run lint # eslint (src/ + tests/)
npm test # vitest — full suite
npx vitest run tests/<file> # single test file (shared fixtures in tests/helpers/)
Architecture Overview
src/
cli.ts # Entry point — commander CLI
cli/ # Subcommands: start, config, backup, lcm, cron, sessions, etc.
agent.ts # Agent orchestrator — ingress, turn dispatch, notifications, context nudges
agent/ # Turn execution internals:
turn-runner.ts # Runs a turn with retry + NO_REPLY silent-reply policy
live-session-manager.ts # Owns LiveSession lifecycle — create/resume, reset-and-retry
live-session.ts # Wraps SDK query() streaming; steering merge/promotion
delivery-pipeline.ts # Streams + finalizes outbound messages to channels
commands.ts # Chat slash commands (/new, /model, /summon, /login, ...)
scaffold-filter.ts # Strips training-scaffold leaks from outbound text
inbound-markers.ts # Inbound marker formatters + outlet guard for fabricated ones
context-nudge.ts # Pure decision logic for context-usage nudges
sdk-options.ts # Builds SDK query options (model, MCP servers, auto-compact policy)
audience.ts # DM-session audience tracking (private DM vs summoned group)
inbound-batcher.ts # Coalesces messages that pile up behind an in-flight turn
proactive-send.ts # send_message service (direct + delegate modes)
# plus: session-queue, pending-notes-queue, send-target, permissions, text-utils, claude-login
router.ts # IdentityRouter — session key resolution, allowlists, summons
people.ts # People registry — person records, alias/handle resolution, auto-binding
config.ts # Config from ~/.tomo/config.json + env vars (zod-validated)
tomo-event.ts # <tomo-event> envelope for harness-composed messages
auth.ts # Anthropic auth resolution (env key > config; subscription or API key)
channels/ # Channel implementations (Telegram, iMessage via the imsg CLI)
sessions/ # Persistence (store.ts), key helpers (keys.ts), summon-store.ts
mcp/ # tomo-internal in-process MCP server (internal-server.ts) + tool factories
# (cron-, people-, recall-, pet-tools); external-config.ts, oauth.ts
cron/ # Scheduler (30s poll → agent.handleCronMessage) + store (data/cron/jobs.json)
lcm/ # Context mgmt — compact, stats, prune-tools, blocks (rollups), runner
continuity.ts # ContinuityRunner — periodic heartbeats for autonomous behavior
watch/ # `tomo watch` mission-control TUI: bus.ts (in-process event bus emitters
# publish to), server.ts (NDJSON over ~/.tomo/watch.sock), snapshot.ts,
# client.ts, tui/ (Ink app — feed, vitals sidebar, chat line, log tail)
metrics/ # Prometheus exporter (exporter.ts, /metrics on 127.0.0.1:9464) + NDJSON
# activity log (activity-log.ts) — both WatchBus subscribers, gated by
# config.metrics; Grafana stack in contrib/observability/
costs.ts, models.ts, litellm.ts # /cost reports; model aliases; LiteLLM gateway modes
jsonl.ts, fs-utils.ts, runtime-paths.ts # JSONL readers; atomic writes; SDK session file paths
file-lock.ts # withFileLockSync — advisory cross-process lock for the JSON stores
version.ts # VersionChecker — weekly npm registry check, daytime-only notification
workspace/ # System prompt builder (SOUL.md + AGENT.md + IDENTITY.md + memory)
logger.ts # Pino structured logging
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.
- yesterday Changed · +1 lines · +464 tokens per session 52c7e5702725
- 5d ago Changed · +192 tokens per session dfb57f663d49
- 10d ago First seen · 163 lines · 3,300 tokens per session scan A d9f422569a81
tomo CLAUDE.md is an instructions file published in the GitHub repository shuaiyuan17/tomo (5 stars, last pushed today), licensed MIT. It adds 3,956 tokens to every session, about $0.0198 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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