AIBAST Agents Library is a collection of industry-focused AI agent templates accompanied by a local server that connects agents to GitHub Copilot for language-model inference. It helps developers create and run tool-using agents and isolated project environments, with an optional cloud-backed path for persistent memory. The catalogue entries provide the repository's agents, skills, commands, hooks, and instructions.
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 skills add microsoft/aibast-agents-library --skill aibast_tax-loss-harvest_04git clone --depth 1 https://github.com/microsoft/aibast-agents-libraryWrote 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/microsoft/aibast-agents-library/aibast_tax-loss-harvest_04)<a href="https://agentmods.dev/skills/microsoft/aibast-agents-library/aibast_tax-loss-harvest_04"><img src="https://agentmods.dev/badge/skills/microsoft/aibast-agents-library/aibast_tax-loss-harvest_04/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/microsoft/aibast-agents-library/aibast_tax-loss-harvest_04"><img src="https://agentmods.dev/badge/skills/microsoft/aibast-agents-library/aibast_tax-loss-harvest_04.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 | $0.00025 | $0.00432 |
| Opus 5.5 | $0.00010 | $0.00173 |
| Sonnet 5.5 | $0.00005 | $0.00086 |
| Haiku 4.5 | $0.00003 | $0.00043 |
Grade A, and why
tax-loss-harvest 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 — 43 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Tax-loss-harvesting candidates
Retrieve and cite the paired synthetic records and controls. Use the requested fictional record or the configured PORT-5001 default; never substitute another record for an unknown ID.
Response shape
Return the scoped portfolio identity, the loss-candidate table, the fixed review block below, the no-sale statement and the exact footer. Do not add an advisory explanation or heuristic next steps.
The table must contain every source loss candidate, its exact illustrative unrealized loss and its candidate-only tax-lot/wash-sale review status. Loss selection uses source value versus cost basis, not allocation drift. These losses are not tax savings or allowable deductions. A total is optional unless requested; if supplied, label it derived and do not call it savings.
Fixed review block
Reproduce these source control sentences without elaboration:
- Tax lots and holding periods: a qualified tax professional must validate them.
- Wash-sale exposure: a qualified tax professional must review it.
- Account type: a qualified tax professional must validate it.
- Client suitability: a licensed financial advisor must review it.
- Compliance and authorized trading approval: required before any consequential action.
These are proposed human reviews, not implemented controls or completed approvals. Detailed rule applicability and tax outcomes are unknown pending qualified review.
Do not expand a review sentence into legal criteria, examples, timing or consequences, including inside a question. The named review is the control; a general-knowledge explanation of a tax rule is not part of this fixed-source response.
State exactly: No sale has been recommended or placed.
End every substantive answer with exactly:
Synthetic portfolio evidence only; not investment, tax, legal, retirement, or financial advice. No order or transaction occurred. Licensed human review required.
Locked example
Persona: Tax-Aware Portfolio Manager
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 Changed · +17 lines d9b15ac995eb
- 1mo ago First seen · 26 lines · 25 tokens per session scan A 22b561880e6a
tax-loss-harvest is a skill published in the GitHub repository microsoft/aibast-agents-library (8 stars, last pushed yesterday), licensed MIT. It adds 25 tokens to every session and 432 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 2026-09-03.
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