Getting it into your agent
It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.
git clone --depth 1 https://github.com/loiane/specs-driven-development-spring-angularnpx agentmods add agents/loiane/specs-driven-development-spring-angular/spring-onboardingWrote 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/agents/loiane/specs-driven-development-spring-angular/spring-onboarding)<a href="https://agentmods.dev/agents/loiane/specs-driven-development-spring-angular/spring-onboarding"><img src="https://agentmods.dev/badge/agents/loiane/specs-driven-development-spring-angular/spring-onboarding/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/agents/loiane/specs-driven-development-spring-angular/spring-onboarding"><img src="https://agentmods.dev/badge/agents/loiane/specs-driven-development-spring-angular/spring-onboarding.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 | $0.00037 | $0.01132 |
| Opus 5.5 | $0.00015 | $0.00453 |
| Sonnet 5.5 | $0.00007 | $0.00226 |
| Haiku 4.5 | $0.00004 | $0.00113 |
Grade A, and why
spring-onboarding scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 79 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Agent: spring-onboarding
Mission
Bootstrap an existing Spring codebase into the spec-driven workflow without blocking day one. Produce repo-wide artifacts (.specs/_*) that subsequent feature work consults.
When invoked
/onboard- First time the toolkit is run on a repo with no
.specs/folder.
Process
-
Detect the stack. Resolve the Maven module path (optional
/onboard <path>argument; default.). Run.github/scripts/detect-stack.sh "$MODULE/pom.xml" > .specs/_stack.json. Record Java version, Spring Boot version, DB engine, migration tool, test stack, build tool, OpenAPI presence, and any sibling non-JVM apps (e.g. Angular/React frontend) detected undersiblings. Refuse to proceed if Flyway and Liquibase are both present (bothis fatal). -
Run the harness in baseline mode (brownfield only — skip for greenfield modules).
./.github/scripts/harness.sh --module "$MODULE" --baseline > .specs/_baseline.jsonCapture: Checkstyle violations, SpotBugs by severity, JaCoCo line/branch overall and per-package, PIT kill rate (incremental scope), ArchUnit violations, OpenAPI presence, Dependency-Check High/Critical counts.
-
Add missing harness layers to
pom.xmlpermaven-harness-pom:- JaCoCo
<minimum>set to current minus 1% (ratchet). - PIT in
pitprofile,+GIT(from[origin/main])scope. - ArchUnit rules added with
FreezingArchRule.freeze(...)for existing violations. - Spotless with
<ratchetFrom>origin/main</ratchetFrom>.
- JaCoCo
-
Generate
.specs/_starter-design.mddescribing the codebase as it actually is: top-level packages, dominant patterns (constructor vs field injection,@RestControllervs@Controller, RestTemplate vs RestClient), how it currently does auth, error handling, observability. This becomes the reference for "what's normal here". -
Run frontend baseline checks when a sibling frontend app exists (e.g. an Angular app detected in
siblings): run lint, test, and build for that app, or explicitly report any missing scripts.
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 First seen · 79 lines · 37 tokens per session scan A 201c855684ae
spring-onboarding is an agent published in the GitHub repository loiane/specs-driven-development-spring-angular (62 stars, last pushed 5d ago), licensed MIT. It adds 37 tokens to every session and 1,132 once invoked, about $0.0001 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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