Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add instructions/vllm-project/semantic-router/agents-mdgit clone --depth 1 https://github.com/vllm-project/semantic-routerWhat 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 | $0.01993 | $0.01993 |
| Opus 5 | $0.00996 | $0.00996 |
| Sonnet 5 | $0.00399 | $0.00399 |
| Haiku 4.5 | $0.00199 | $0.00199 |
Grade A, and why
semantic-router 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 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 — 87 lines — stays where its author put it; the contents beside it link to each section on GitHub.
vLLM Semantic Router Agent Entry
This file is the short entrypoint for coding agents. The detailed human-readable system of record lives in tools/agent/docs/README.md. The executable rule layer lives in tools/agent/repo-manifest.yaml, tools/agent/test-domain-registry.yaml, tools/agent/task-matrix.yaml, tools/agent/skill-registry.yaml, tools/agent/structure-rules.yaml, tools/agent/maintainer-policy.yaml, and tools/make/agent.mk.
vLLM Semantic Router is an Envoy ExtProc request router for LLM inference. It resolves a request-facing entrypoint to an isolated recipe, evaluates that recipe's signals and projections, applies its decision and algorithm, then invokes the selected backend and recipe-scoped plugins.
Read First
- tools/agent/docs/README.md
- tools/agent/docs/repo-map.md
- tools/agent/docs/environments.md
- tools/agent/docs/change-surfaces.md
make agent-report ENV=cpu|amd CHANGED_FILES="..."
Task Routing
- Root startup begins with this AGENTS.md entrypoint.
- Full task routing, primary-skill resolution, local-rule surfacing, loop-mode guidance, and validation planning come from
make agent-report ENV=cpu|amd CHANGED_FILES="...". - Follow the primary skill selected from tools/agent/skills/ instead of treating the root entrypoint as a task-specific skill.
tools/agent/**remains the canonical harness source.
If you need real AMD model deployment details instead of the minimal smoke path, also read website/docs/installation/amd-rocm.md and config/recipes/balance/config.yaml.
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 First seen · 87 lines · 1,993 tokens per session scan A 54240a3e2840
semantic-router AGENTS.md is an instructions file published in the GitHub repository vllm-project/semantic-router (5,423 stars, last pushed 2d ago), licensed Apache-2.0. It adds 1,993 tokens to every session, about $0.0100 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 2026-08-30.
Other instructions, from other repositories
deltallm AGENTS.md
Instructions for deltawi/deltallm, covering repository instructions, required first step and precedence and maintenance.
OmniRoute CLAUDE.md
Instructions for diegosouzapw/OmniRoute, covering claude.md, worktree isolation — claude code specifics, cross-session safety — claude code specifics, superpowers / planning artifacts — path overrides and scratch / temporary files — use artifacts/, not /tmp.
CPA-Manager-Plus AGENTS.md
Instructions for seakee/CPA-Manager-Plus, covering repository rules, operation, layout, commands and architecture.
timoni AGENTS.md
Instructions for stefanprodan/timoni, covering agents.md, what timoni is, common commands, architecture and cmd/timoni/ — cli (cobra).
netdata AGENTS.md
AGENTS.md instructions for netdata/netdata, covering agents.md, goals, requirement language, mandatory development principles and sow system.
Mooncake AGENTS.md
Instructions for kvcache-ai/Mooncake, covering agents.md, docs/ directory changes and pull request guidelines.