GreptimeDB is an observability database that stores metrics, logs, and traces in a columnar engine over object storage, using a shared table model for the data. It is for operating telemetry backends, correlating related signals with SQL, and querying metrics with PromQL.
Borrowing it
Nothing to install: this file belongs to GreptimeTeam/greptimedb. 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/GreptimeTeam/greptimedb/main/AGENTS.mdgit clone --depth 1 https://github.com/GreptimeTeam/greptimedbWrote 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/greptimeteam/greptimedb/agents-md)<a href="https://agentmods.dev/instructions/greptimeteam/greptimedb/agents-md"><img src="https://agentmods.dev/badge/instructions/greptimeteam/greptimedb/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/greptimeteam/greptimedb/agents-md"><img src="https://agentmods.dev/badge/instructions/greptimeteam/greptimedb/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 | $0.02163 | $0.02163 |
| Opus 5.5 | $0.00865 | $0.00865 |
| Sonnet 5.5 | $0.00433 | $0.00433 |
| Haiku 4.5 | $0.00216 | $0.00216 |
Grade A, and why
greptimedb 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 — 165 lines — stays where its author put it; the contents beside it link to each section on GitHub.
AGENTS.md
Guidance for coding agents (Claude Code, Codex, ...) and contributors working in
this repository. CLAUDE.md is a symlink to this file. If .local/AGENTS.md or
.local/CLAUDE.md is present, you MUST read it as well — it holds personal
or machine-local overrides (gitignored, not shared). To record a personal or
machine-local override, write it to .local/AGENTS.md (create .local/ and the
file if absent), not to this shared file.
GreptimeDB is an open-source, cloud-native observability database for unified collection and analysis of metrics, logs, and traces. It is written in Rust and provides sub-second querying at PB scale with high cost efficiency.
Core commands
| Task | Command |
|---|---|
| Build (debug) | make build |
| Build (release) | make build RELEASE=true |
| Run standalone | cargo run -- standalone start |
| Targeted Rust tests | cargo nextest run -p <package> (preferred over cargo test) |
| Full local Rust suite | make test |
| SQL tests | cargo sqlness bare (single case: cargo sqlness bare -t <name>) |
| Format | make fmt (and make fmt-toml for TOML) |
| Lint | make clippy (= cargo clippy --workspace --all-targets --all-features -- -D warnings) |
| Type check | make check |
Toolchain: Rust (stable, pinned by rust-toolchain.toml), Protobuf compiler (>= 3.15), C/C++ build essentials.
Install the test runner with cargo install cargo-nextest --locked.
Repo map
GreptimeDB is a Cargo workspace rooted at the repository; most crates live under
src/ (plus tests-fuzz, tests-integration, tests/runner). Key areas:
- Frontend / protocol:
src/frontend/(request orchestration),src/servers/(wire protocols),src/sql/(SQL parsing) - Storage engines:
src/mito2/(main time-series engine),src/metric-engine/(metrics),src/file-engine/ - Coordination:
src/meta-srv/(metadata & cluster control),src/meta-client/ - Execution / statements:
src/operator/(DDL/DML, request conversion, procedures) - Stream / transform:
src/flow/(continuous aggregation),src/pipeline/ - Query / index:
src/query/,src/promql/,src/index/ - Shared:
src/common/,src/datatypes/,src/store-api/(engine contract),src/catalog/,src/table/
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 · +11 tokens per session f63b1590f1f8
- 1mo ago Changed · +10 lines · +133 tokens per session f7afaaf99893
- 1mo ago Changed · -8 tokens per session b3a7f9452d42
- 1mo ago Changed · +5 lines · +38 tokens per session 9e737907e00d
- 2mo ago Changed · +5 lines · +97 tokens per session 68951413c439
- 2mo ago First seen · 145 lines · 1,892 tokens per session scan A b7213ab19cd2
greptimedb AGENTS.md is an instructions file published in the GitHub repository GreptimeTeam/greptimedb (6,789 stars, last pushed yesterday), licensed Apache-2.0. It adds 2,163 tokens to every session, about $0.0087 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.
greptimedb AGENTS.md compared with instructions from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| greptimedb AGENTS.mdGreptimeTeam/greptimedb | Instructions file | 6.8k | yesterday | Apache-2.0 | A | 2,163 | Codex, OpenCode |
| vscode buildNext.instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 9,719 | GitHub Copilot |
| next.js AGENTS.mdvercel/next.js | Instructions file | 143k | today | MIT | A | 7,461 | Codex, OpenCode |
| langchain AGENTS.mdlangchain-ai/langchain | Instructions file | 149k | yesterday | MIT | A | 4,680 | Codex, OpenCode |
| vscode oss-third-party-notices.instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 5,516 | GitHub Copilot |
| vscode copilot-instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 3,093 | GitHub Copilot |
| deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness | Instructions file | 274k | 2d ago | MIT | A | 4,313 | Codex, OpenCode |