microsoft/BCQuality is a structured knowledge base and skills library for Microsoft Business Central development. It records Business Central-specific rules and platform behaviors that coding agents or developers might otherwise get wrong. The catalogue entries provide the agents and skill that consume this guidance.
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/BCQuality --skill al-plan-guidancegit clone --depth 1 https://github.com/microsoft/BCQualityWrote 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/bcquality/al-plan-guidance)<a href="https://agentmods.dev/skills/microsoft/bcquality/al-plan-guidance"><img src="https://agentmods.dev/badge/skills/microsoft/bcquality/al-plan-guidance/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/bcquality/al-plan-guidance"><img src="https://agentmods.dev/badge/skills/microsoft/bcquality/al-plan-guidance.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 | $0.00047 | $0.00955 |
| Opus 5.5 | $0.00019 | $0.00382 |
| Sonnet 5.5 | $0.00009 | $0.00191 |
| Haiku 4.5 | $0.00005 | $0.00096 |
Grade A, and why
al-plan-guidance 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 today.
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 — 78 lines — stays where its author put it; the contents beside it link to each section on GitHub.
AL plan guidance (preview)
This is BCQuality's host-native adapter for applying knowledge to an existing AL development plan. It is a preview: the underlying contract may change based on pilot feedback. It is not a BCQuality action skill and contains no routing or knowledge-selection policy. Its only responsibility is to translate the caller's request into an Entry task context and execute the resulting dispatch.
The adapter is read-only. It never creates or rewrites the plan, edits source, writes generated files into the caller's repository, runs tests, or implements the change.
Execute
- Resolve
PLUGIN_ROOTto the directory containing this plugin's rootplugin.json. This file isPLUGIN_ROOT/skills/al-plan-guidance/SKILL.md; when the host does not expose the plugin root, resolve it two levels above this file. - Identify the caller's existing plan: a plan file path, plan text in the request, or a plan the caller explicitly identifies in the conversation. If no plan is available, ask the caller for one. Do not generate a plan; this skill enriches an existing one.
- Build the
task-contextrequired byPLUGIN_ROOT/skills/entry.md:- Copy the caller's actual request verbatim into
goal. - Set
inputs-availabletodevelopment-plan, plusrepositorywhen the caller's AL repository or app folder is readable. Pass the complete plan content asdevelopment-planand the repository path asrepository; for a request in the caller's working directory, use that directory. - Set
technologies: [al]. - Pass
bc-version,countries, andapplication-areaonly when supplied or reliably determined from the plan or repository. - If
BCQUALITY_ENABLED_LAYERSis set, split its comma-separated value and pass the trimmed, non-empty entries asenabled-layers; otherwise omit the field and let Entry apply its default. - If
BCQUALITY_DISABLED_SKILLSis set, split its comma-separated value and pass the trimmed, non-empty entries asdisabled-skills; otherwise omit the field.
- Copy the caller's actual request verbatim into
- Read and execute
PLUGIN_ROOT/skills/entry.mdexactly as written, including its Preparation step. Entry is authoritative for index freshness, routing, defaults, and failure behavior; this adapter must not duplicate or weaken those rules. Resolve every repo-relative path Entry names againstPLUGIN_ROOT, not the caller's working directory. Run Preparation's index build aspwsh PLUGIN_ROOT/tools/Build-KnowledgeIndex.ps1. IfPLUGIN_ROOTis inside the caller's repository, pass-IndexPathto a location outside that repository and supply the resulting index path to the dispatched skill. Ifpwshis unavailable or the build fails, continue with READ's path-based discovery; a failed build is not empty knowledge. - Follow Entry's How the agent uses the dispatch instructions. Invoke only
the returned action skills, pass each dispatch entry's exact input subset,
and read
PLUGIN_ROOT/skills/read.mdandPLUGIN_ROOT/skills/do.mdon demand. - Return each dispatched development guidance report unchanged. If Entry
returns
no-matchorfailed, return its dispatch record unchanged.
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.
- today First seen · 78 lines · 47 tokens per session scan A b65f737586d4
al-plan-guidance is a skill published in the GitHub repository microsoft/BCQuality (231 stars, last pushed today), licensed MIT. It adds 47 tokens to every session and 955 once invoked, about $0.0002 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 2026-10-21.
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