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/synaptiai/synapti-marketplacenpx agentmods add skills/synaptiai/synapti-marketplace/initializing-ledgerWrote 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/skills/synaptiai/synapti-marketplace/initializing-ledger)<a href="https://agentmods.dev/skills/synaptiai/synapti-marketplace/initializing-ledger"><img src="https://agentmods.dev/badge/skills/synaptiai/synapti-marketplace/initializing-ledger/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/skills/synaptiai/synapti-marketplace/initializing-ledger"><img src="https://agentmods.dev/badge/skills/synaptiai/synapti-marketplace/initializing-ledger.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 | $0.00030 | $0.01229 |
| Opus 5.5 | $0.00012 | $0.00492 |
| Sonnet 5.5 | $0.00006 | $0.00246 |
| Haiku 4.5 | $0.00003 | $0.00123 |
Grade A, and why
initializing-ledger 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 — 186 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Ledger Initialization
This skill creates a complete Context Ledger workspace from a project brief.
Prerequisites
- User must provide a project brief (text description of what they're building)
- Optionally: custom path for ledger workspace (default:
./ledger/)
Workflow
Use TodoWrite to track these mandatory steps:
Step 1: Parse the Brief
Extract from the user's input:
| Component | Description | Required |
|---|---|---|
| Core idea | What is being built (1-2 sentences) | Yes |
| Target users | Who will use this | Yes |
| Key goals | What success looks like | Yes |
| Constraints | What's explicitly out of scope | Recommended |
| Context | Any domain-specific information | Optional |
If the brief is too vague, use AskUserQuestion to clarify:
Question: "Your brief mentions [X] but I need more clarity on [Y]. Can you specify?"
Options:
- "[Interpretation A]"
- "[Interpretation B]"
- "Let me provide more detail"
Step 2: Validate Brief Completeness
Check that the brief supports downstream work:
| Check | Pass Criteria |
|---|---|
| Scope clarity | Can identify what's in/out |
| User clarity | Can describe target users |
| Goal measurability | At least one goal is falsifiable |
| Constraint presence | At least one constraint stated |
What ships with it
2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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 · 186 lines · 30 tokens per session scan A 19812f0d2da2
initializing-ledger is a skill published in the GitHub repository synaptiai/synapti-marketplace (7 stars, last pushed 10d ago), licensed Apache-2.0. It adds 30 tokens to every session and 1,229 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 2026-08-31.
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