Borrowing it
Nothing to install: this file belongs to higebu/3gpp-mcp. 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/higebu/3gpp-mcp/main/AGENTS.mdgit clone --depth 1 https://github.com/higebu/3gpp-mcpWrote 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/higebu/3gpp-mcp/agents-md)<a href="https://agentmods.dev/instructions/higebu/3gpp-mcp/agents-md"><img src="https://agentmods.dev/badge/instructions/higebu/3gpp-mcp/agents-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/higebu/3gpp-mcp/agents-md"><img src="https://agentmods.dev/badge/instructions/higebu/3gpp-mcp/agents-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 | $0.03107 | $0.03107 |
| Opus 5.5 | $0.01243 | $0.01243 |
| Sonnet 5.5 | $0.00621 | $0.00621 |
| Haiku 4.5 | $0.00311 | $0.00311 |
Grade A, and why
3gpp-mcp AGENTS.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.
How it starts
The opening of the file, as written. The whole thing — 177 lines — stays where its author put it; the contents beside it link to each section on GitHub.
AGENTS.md
MCP server that downloads 3GPP specification documents (.docx), converts them
to Markdown, stores them in SQLite with FTS5 full-text search, and serves them
via MCP tools and an optional web viewer. Go 1.26+, pure Go SQLite
(modernc.org/sqlite) — no CGO.
README.md has the command reference, MCP tool list, environment variables, code-fence table and deployment guide. This file only covers what an agent cannot easily discover from the code.
Commands
make build # Build to bin/3gpp-mcp
go test ./... # Run tests (-short skips tests that hit the 3GPP FTP)
gofmt -l . && go vet ./... && golangci-lint run # Lint (CI also runs go test -race)
make build-db # Download + import latest version of every spec (RELEASE=19 for one release, MAX_RELEASE=19 to cap)
make web # HTTP server with web viewer at :8080
make e2e # Playwright suite for web viewer JS behavior (CI job "e2e"); hermetic server harness in e2e/e2eserver
Package Map
cmd/3gpp-mcp/— CLI entry point (serve, build, download, import, import-dir, update, plus query subcommands mirroring the MCP read tools 1:1 inquery.go). New subcommands register in thecommandsslice inmain.go— dispatch, the usage line and the shell completion scripts are all generated from itinternal/converter/docx/— DOCX → Markdown parser;internal/converter/pipeline/— streaming download + convert worker poolinternal/db/— SQLite schema, queries, FTS5internal/versionstore/— on-demand cache of spec versions not in the prebuilt databaseinternal/tdoc/— locating, downloading and converting meeting documents (TDocs);internal/tdocstore/— their on-demand cache;internal/ondemand/— the detached single-flight fetch helper both stores shareinternal/tools/— MCP tool handlers;internal/web/— web viewer (reads through the sametools.Source, so it is version-aware)internal/specver/— base-36 archive token (k20) ↔ dotted version (20.2.0)internal/structdiff/,internal/textdiff/— compare_versions diff logic, shared with the web compare page
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.
- 1mo ago Changed · +6 lines · +102 tokens per session e950117390f6
- 1mo ago Changed · +36 lines · +719 tokens per session 031d46272b2a
- 1mo ago Changed · +8 lines · +130 tokens per session 1c196f3d400f
- 1mo ago First seen · 127 lines · 2,156 tokens per session scan A b7b5bfc6e1e4
3gpp-mcp AGENTS.md is an instructions file published in the GitHub repository higebu/3gpp-mcp (19 stars, last pushed today), licensed MIT. It adds 3,107 tokens to every session, about $0.0124 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.
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