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.
git clone --depth 1 https://github.com/fockus/skill-memory-bankWrote 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/commands/fockus/skill-memory-bank/contract)<a href="https://agentmods.dev/commands/fockus/skill-memory-bank/contract"><img src="https://agentmods.dev/badge/commands/fockus/skill-memory-bank/contract/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/commands/fockus/skill-memory-bank/contract"><img src="https://agentmods.dev/badge/commands/fockus/skill-memory-bank/contract.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 | $0.00032 | $0.00373 |
| Opus 5.5 | $0.00013 | $0.00149 |
| Sonnet 5.5 | $0.00006 | $0.00075 |
| Haiku 4.5 | $0.00003 | $0.00037 |
Grade A, and why
contract 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 10d 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
Contract-First: $ARGUMENTS
0. Validate arguments
If $ARGUMENTS is empty, stop and ask the user for the module / interface name to design. Do not proceed with an empty target.
1. Analysis
- Study the existing interfaces and contracts in the project
- Read
./.memory-bank/roadmap.mdand any ADRs if they exist - Determine which layers are affected (
handler/service/repository/infra)
2. Define the contract
Show me first:
- The interface (method signatures, input/output types)
- Usage examples (Specification by Example): concrete inputs → expected outputs
- Failure scenarios: what can go wrong → which errors are returned
Ask for confirmation before continuing.
3. Contract tests
After the contract is approved:
- Write tests for the interface (Testing Trophy: prioritize integration tests)
- Tests must verify the contract, not the implementation
- Tests should fail first (the implementation does not exist yet)
- Run them and make sure they fail for the right reason
4. Implementation
- Implement the interface
- Run the contract tests — all must pass
- Contract tests must NOT change during implementation. If you need to change them, the contract was defined incorrectly; go back to step 2
5. Finalization
- Run the full test suite
- If Memory Bank is active, add a note in
notes/
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.
- 10d ago Changed · +18 tokens per session 1d4c876c34ba
- 1mo ago First seen · 47 lines · 14 tokens per session scan A ce87484d16fb
contract is a command published in the GitHub repository fockus/skill-memory-bank (26 stars, last pushed 10d ago), licensed MIT. It adds 32 tokens to every session and 373 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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