Borrowing it
Nothing to install: this file belongs to Lobang-Scout/sg-connectors. 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/Lobang-Scout/sg-connectors/main/CLAUDE.mdgit clone --depth 1 https://github.com/Lobang-Scout/sg-connectorsWrote 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/lobang-scout/sg-connectors/claude-md)<a href="https://agentmods.dev/instructions/lobang-scout/sg-connectors/claude-md"><img src="https://agentmods.dev/badge/instructions/lobang-scout/sg-connectors/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/lobang-scout/sg-connectors/claude-md"><img src="https://agentmods.dev/badge/instructions/lobang-scout/sg-connectors/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 | $0.00495 | $0.00495 |
| Opus 5 | $0.00247 | $0.00247 |
| Sonnet 5 | $0.00099 | $0.00099 |
| Haiku 4.5 | $0.00049 | $0.00049 |
Grade A, and why
sg-connectors 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 10d 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
sg-connectors — project rules
Free, no-auth MCP connectors for Singapore SME data surfaces, by Lobang Scout.
Connectors: sg-company-lookup (ACRA company/UEN over data.gov.sg) and sg-onemap
(address/postal over OneMap). Packaged so each ships as a uvx-installable server.
Conventions
- Python: use
python3.12explicitly. Servers are stdio MCP via FastMCP (mcpSDK). - Packaging:
src/layout, one console entry point per connector inpyproject.toml. Installable from git viauvx --from git+...<repo> <entry>— no PyPI publish needed. - Honest scope is a hard rule. Never return or imply fields the free dataset
doesn't carry (officers, financials, full address, real-time status). Tests in
tests/test_acra.pyguard against inventing paywalled fields — keep them. - Snapshot honesty: every data response includes a note that the source is a monthly snapshot, not real-time. Don't strip it.
- No live network in tests. Mock
httpx. Live smoke tests are manual only. - Branching: task branch, no commits to
maindirectly. Don't auto-commit. - No emojis. Keep docs tight.
Layout
src/sg_connectors/uen.py— UEN format validation (offline, no network).src/sg_connectors/acra.py— data.gov.sg CKAN client +Entityshape.src/sg_connectors/company_server.py— FastMCPsg-company-lookupserver.src/sg_connectors/onemap.py— OneMap Search client +Addressshape.src/sg_connectors/onemap_server.py— FastMCPsg-onemapserver.tests/— pytest (asyncio_mode = auto,pythonpath = src); network mocked.
Adding a connector
Each new SG surface (e.g. postal/address, GST registration check) gets its own client module + tools, with the same honest-scope discipline: document exactly what the free source returns and what it can't, and add a test that guards the boundary.
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.
- 10d ago First seen · 35 lines · 495 tokens per session scan A 9ebeecfd4703
sg-connectors CLAUDE.md is an instructions file published in the GitHub repository Lobang-Scout/sg-connectors (0 stars, last pushed 1mo ago), licensed MIT. It adds 495 tokens to every session, about $0.0025 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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