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 commands/anthropics/financial-services/bootstrapgit clone --depth 1 https://github.com/anthropics/financial-servicesWhat 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 | $0.00014 | $0.03610 |
| Opus 5 | $0.00007 | $0.01805 |
| Sonnet 5 | $0.00003 | $0.00722 |
| Haiku 4.5 | $0.00001 | $0.00361 |
Grade A, and why
bootstrap scanned grade A with 1 finding 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 2d 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.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
The presigned-URL one bites hardest because `curl` works (curl ignores CORS), How it starts
The opening of the file, as written. The whole thing — 326 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Bootstrap endpoint
You host an HTTPS GET handler. The add-in calls it at startup with the user's
Entra token, you return per-user JSON, the response overrides manifest and
extension attrs for that user. This is how you push structured config —
mcp_servers, skills — that flat string attrs can't carry.
Ask first
Figure out which mode you're in before walking the spec:
- Just want to understand it? Answer from the sections below. Common
questions: what's the response shape, how does
{{...}}work, why is CORS biting me. - Building one? Ask: new handler or editing an existing one? Lambda, Cloud Function, Express, Python, something else? Then jump to Scaffolding — the sections in between are the contract you're coding against.
This vs extension attrs
Both deliver per-user config. Pick by what you're carrying.
| Extension attrs | Bootstrap endpoint | |
|---|---|---|
| You write | az rest PATCH per user |
An HTTPS service |
| Carries | Flat strings, ≤256 chars | Any JSON — arrays, nested, base64 |
| Good for | Token rotation, region override | mcp_servers, skills, anything structured |
| Refresh | Token cache, ~1hr lag | bootstrap_expires_at, you control it |
| Auth | Entra token claims (passive) | You validate the JWT (active) |
If you only need to swap gateway_token per user, attrs are less work. The
moment you want a Linear MCP server for one team and a Jira one for another,
you're here.
Template interpolation
Any string value can contain {{key}}. The add-in substitutes against the
merged config chain — manifest params, then extension attrs, then this
response, each layer overriding the last. You don't echo a value back just so
a template can see it; if gateway_token is already in the manifest or an
attr, {{gateway_token}} resolves.
Two phases, because the request has to happen before the response exists:
bootstrap_urlitself resolves against manifest + attrs only. So the manifest can carrybootstrap_url=https://config.internal/bootstrap?project={{gcp_project_id}}and you run one endpoint that branches on a query param instead of stamping per-team URLs into attrs.- Response fields resolve against the full merge — manifest + attrs +
whatever this response just returned. An
mcp_serversentry can reference agateway_tokenthat lives three lines up in the same JSON.
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.
- 2d ago First seen · 326 lines · 14 tokens per session scan A 5dbe9ffa03b0
bootstrap is a command published in the GitHub repository anthropics/financial-services (34,627 stars, last pushed 7d ago), licensed Apache-2.0. It adds 14 tokens to every session and 3,610 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
Other commands, from other repositories
add-portal
You are helping the user build a job-portal search skill for a job board in their market. The repo ships worked examples of the pattern (four Danish portals plus the country-agnostic linkedin-search and freehire-search), and the README invites users elsewhere to build equivalents — this command turns that invitation…
send
Send a message to a running agent session. Use this to correct or direct a live agent mid-stream without killing and respawning it.
execute
Delegate execution to GJC (runs /skill:ultragoal to completion with verification).
vibe-agents
Step 4 of the vibe-coding workflow: generate AGENTS.md + tool configs so the AI builder stays on track.
ship-an-mcp-server
Workflow recipe — make your product agent-usable by chaining 4 skills, spec to pricing.
agentlas-cloud
Staff a task only from the signed-in owner's Agent Cloud agents.