bcquality/agent-consumption.md

How agents consume BCQuality

BCQuality is content — knowledge files and skills. It is consumed by agents that live elsewhere (AL-Go, a VS Code extension, a GitHub Agent invocation, etc.). This document explains the end-to-end flow, so that skill authors, orchestrator maintainers, and contributors share one mental model.

For the high-level framing and repo structure, start with the README. This document is the operational view.

The actors

• Orchestrator — the tool that triggers work (e.g. AL-Go on a pull request, or a VS Code extension on save). Lives outside BCQuality. Knows when to run something, not what to run.
• Agent — an LLM-driven process spawned by the orchestrator. The agent has no built-in knowledge of BC or of BCQuality's conventions. It knows how to read instructions and call tools.
• BCQuality repo — two kinds of content:
  • Global skills in /skills/ — the entry.md entry-point skill plus the READ · DO · WRITE contracts that govern the rest of the repo.
  • Layer content in /microsoft/, /community/, and /custom/ — knowledge files and action skills grouped by authority.

The flow

flowchart LR
    O[Orchestrator<br/>AL-Go] -->|1 trigger + task context| A[Agent]
    A -->|2 invoke entry.md| E[Entry<br/>routing skill]
    E -->|3 dispatch record| A
    A -->|4 invoke dispatched skill| S[Action skill<br/>e.g. al-code-review]
    S -->|5 execute| P[Source → Relevance<br/>→ Worklist → Action<br/>reading READ · DO on demand]
    P -->|6 emit| R[Findings · References<br/>· Confidence]
    R -->|7 integrate| O

1. Orchestrator triggers

The orchestrator has a URL setting that points at BCQuality (default: github.com/microsoft/BCQuality) and a task to perform. It hands the agent a task context — goal, inputs available (pr-diff, file-path, …), technologies, BC version, enabled layers — and says: your source of truth lives at that URL; start by invoking /skills/entry.md.

2. Agent invokes Entry

The agent reads /skills/entry.md and runs it against the task context. Entry applies its Source → Relevance → Worklist → Action steps over the action skills under */skills/**/*.md and returns a dispatch record: the set of action skills to invoke, plus a list of candidates it skipped (with reasons). Routing is a skill, not orchestrator logic.

3. Agent consumes the dispatch record

The dispatch record names one or more action skills and the subset of inputs each should receive. If the outcome is no-match or failed, the agent returns the record to the orchestrator unchanged.

4. Agent invokes each dispatched action skill

Action skills live inside the layers — /microsoft/skills/, /community/skills/, /custom/skills/ — so their authority is carried by their location. For a PR review, Entry typically dispatches microsoft/skills/review/al-code-review.md. The agent reads the file and executes it.

5. Action skill executes the four-step pattern

Each action skill is a markdown file that specifies what to do at each step. The template is always the same:

Step	What happens
Source	Declare which knowledge folders and tags to search.
Relevance	Filter by frontmatter — bc-version, technologies, countries, application-area.
Worklist	Narrow from N candidates to the M that apply to this specific task.
Action	Apply the relevant knowledge and produce structured output.

Example: a performance review skill sources from /microsoft/knowledge/performance/ and /community/knowledge/performance/, filters to bc-version: 26 and technologies: [al], narrows the 25 candidate files to the 8 that apply to the 15 objects changed in the PR, and then evaluates each file against the diff.

At this point the agent reads READ and DO on demand — it needs READ to interpret each knowledge file's frontmatter and sections, and DO to shape its output. Those contracts are fetched when first needed, not as part of bootstrap.

6. Agent emits structured output

The output contract is defined in the DO meta-skill so that every action skill — today's and next year's — produces the same shape:

• Outcome — completed, not-applicable, no-knowledge, partial, or failed. An orchestrator can distinguish a clean run from a no-op from a failure without guessing.
• Findings — what the skill observed (severity, message, optional location).
• References — structured objects (path plus optional commit sha) pointing to the knowledge files that informed each finding.
• Confidence — per-finding evidence strength.
• Suppressed — knowledge files that were discarded by layer precedence or configuration, so reviewers can see what was overridden.

The orchestrator parses this without skill-specific logic. This is the point of the contract: orchestrators and action skills evolve independently.

7. Orchestrator integrates

The orchestrator turns findings into PR comments, build gates, or IDE diagnostics, and links the references back to the knowledge files so the PR author — human or agent — can read the guidance.

Why this architecture

• Entry is the only hardcoded thing. Orchestrators ship with one convention — "invoke /skills/entry.md first" — and nothing else. New action skills and new knowledge files are picked up automatically because Entry discovers them at dispatch time.
• Layers decide authority, not code. The agent sees /microsoft/ and /community/ together; if two files conflict, the precedence rule defined in READ resolves it. A partner fork can disable /community/ — that's a config choice, not a code change.
• Knowledge and skills evolve independently. A new knowledge file requires no skill changes — existing skills pick it up via frontmatter filters. A new skill requires no knowledge changes — it sources from what's already there.

The mental model, in one sentence

The orchestrator knows when to run; Entry decides which skill to run; the action skills define what to do; the meta-skills teach the agent how to behave; the knowledge files are what the agent knows.