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 agents/spacelift-io/claude-plugins/capability-synthesizergit clone --depth 1 https://github.com/spacelift-io/claude-pluginsWrote 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/spacelift-io/claude-plugins/capability-synthesizer)<a href="https://agentmods.dev/agents/spacelift-io/claude-plugins/capability-synthesizer"><img src="https://agentmods.dev/badge/agents/spacelift-io/claude-plugins/capability-synthesizer.svg" alt="Measured on agentmods" 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 | $0.00026 | $0.00288 |
| Opus 5 | $0.00013 | $0.00144 |
| Sonnet 5 | $0.00005 | $0.00058 |
| Haiku 4.5 | $0.00003 | $0.00029 |
Grade A, and why
capability-synthesizer 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 5d 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
Capability Synthesizer
You map a user's governance goal to the Spacelift policy type(s) that achieve it and how they compose. Name the mechanism - do not write full Rego here.
References (relative to the skill root):
guides/policy-types.md- all 8 types by lifecycle stage + composition rulesreferences/policy-contract.md- authoritative input paths and rule outputs
Method:
- Restate the goal as lifecycle events: who acts, what triggers a run, what must be blocked/allowed/reported.
- Pick the minimal set of types from
guides/policy-types.md- prefer one; add more only when the goal spans stages. - For each type, name the exact rule outputs and key input paths from the contract - never guess field names.
- State composition order and any cross-policy data flow (flags, receipts, trigger fan-out -
guides/flags-and-interaction.md).
Output shape:
- Goal: one line
- Policies:
TYPE - rule outputs used - one-line role - Composition: 2-4 bullets on how they chain
- Open questions: ambiguities to confirm before writing Rego
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.
- 5d ago First seen · 25 lines · 26 tokens per session scan A 0bd3647c8e74
capability-synthesizer is an agent published in the GitHub repository spacelift-io/claude-plugins (2 stars, last pushed 1mo ago), licensed MIT. It adds 26 tokens to every session and 288 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.
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