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/lantisprime/claude-sdlc/buildgit clone --depth 1 https://github.com/lantisprime/claude-sdlcWhat 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 | $0.00019 | $0.00234 |
| Opus 5 | $0.00010 | $0.00117 |
| Sonnet 5 | $0.00004 | $0.00047 |
| Haiku 4.5 | $0.00002 | $0.00023 |
Grade A, and why
build 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 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.
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.
What it actually says
Invoke the build skill. Prerequisite: .claude/sdlc/gates/design-<task-slug>.md.
The skill coordinates with surgical-edit, minimal-code, and security-review. Hooks enforce:
plan-gate— no Edit/Write without a planwork-item-validation— builds reference a REQ ID / ticket / signed CRdiff-scope-check— only plan-listed files are modifiedadjacent-function-detector— only plan-listed functions are modifiedmodified-code-test-gate— unit tests added only for functions actually modifiedformat-on-write— formatter runs on every changed filesecret-scan— blocks secrets committed to the diff
Produces: code + unit tests + deployment/pipeline deltas.
On completion, invoke the gate-signoff skill to capture the human sign-off via chat and write .claude/sdlc/gates/build-<task-slug>.md.
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 · 20 lines · 19 tokens per session scan A 989a2bb43b42
build is a command published in the GitHub repository lantisprime/claude-sdlc (3 stars, last pushed 4mo ago), licensed MIT. It adds 19 tokens to every session and 234 once invoked, about $0.0001 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 2026-08-31.
Other commands, from other repositories
implement
Execute phased implementation with validation gates.
github
(dev-only) github maintainer harness — GitHub issue-fix and PR-review via gh CLI. NOT distributed to user projects.
goal
Register a completion condition and arm the autonomous continuation loop.
loop
Iteratively fix issues until all resolved or max iterations reached.
project
Generate project documentation (product.md, structure.md, tech.md, codemaps/).
review
Code review with security and @MX tag compliance check.