fix(kyberforge): bridge apm content to Claude Code's flat plugin discovery

Claude Code's (and Copilot's) native plugin installer has zero awareness of
.apm/ nesting -- it convention-scans only flat skills/, agents/, commands/,
hooks.json at each plugin's root. Confirmed via strings on the installed
claude binary and live installs of git@holocron/gitea@holocron/kyberforge@
holocron, all reporting Skills(0) Agents(0) Hooks(0) post ADR-0015's apm
conversion. Root cause (apm_cli/core/plugin_manifest.py): apm's plugin.json
compiler deliberately strips skills/agents/commands keys, assuming the host
already auto-discovers those convention directories -- it has no model of
.apm/ being host-visible at all. Separately, apm's own bundle exporter
(apm_cli/bundle/plugin_exporter.py, behind `apm pack --format plugin`)
implements the correct .apm/ -> flat mapping, but only ever targeted
build/<name>-<version>/, a path nothing in marketplace.json's source: points
at.

scripts/sync-plugin-content.sh wraps that bundle exporter and copies its
agents/, skills/, commands/, instructions/, extensions/, and merged
hooks.json back into each plugin's own root as a second tracked
compiled-output category -- same governance status as
.claude-plugin/plugin.json: generated from .apm/, never hand-edited. tests/
subdirectories are excluded from the mirror (dev fixtures, not host-visible
runtime content; several hardcode a relative repo-root walk-up sized for the
.apm/-nested depth, which breaks when duplicated one level shallower).
Applied for real across all 6 plugins and verified two ways: `claude plugin
validate --strict` passes on every real plugin directory, and a live
`claude --plugin-dir <path> -p "list skills/agents"` behavioral test
confirms content is now actually discovered.

Also, from the same issue #90 review round:
- scripts/check-manifests.sh pointed at each plugin's root-level plugin.json
  (checking skills/hooks/mcpServers/agents pointer fields) -- that file was a
  stale near-duplicate of .claude-plugin/plugin.json nothing else read or
  wrote, now deleted across all 6 plugins. check-manifests.sh is rewritten to
  validate .claude-plugin/plugin.json instead, and drops the pointer-field
  checks entirely (nothing to check -- those fields are correctly absent by
  design). Content-presence drift is now check-plugin-content-sync's job, a
  new pre-push hook wired in .pre-commit-config.yaml.

docs/adr/0017 records the root cause and decision in full, including two
rejected alternatives (patching plugin.json's path fields directly -- apm's
compiler strips them on every run; pointing marketplace.json at apm pack's
build/ output -- a version-suffixed non-source directory nothing can install
from without an extra build step). ADR-0015 and CONTEXT.md are updated to
point at it.

Refs: #90
This commit is contained in:
2026-08-13 16:59:03 +00:00
parent 7910b8b12c
commit 38f1ba4e03
217 changed files with 14455 additions and 175 deletions

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---
source_keys:
- agentskills-spec
- agentskills-best-practices
---
# Body Discipline Reference
Source: agentskills.io — skill-authoring
## The core test
For every sentence in the body, ask: **"Would the agent get this wrong without this instruction?"**
If no — cut it. The agent already knows it from general training. Adding it wastes tokens and dilutes the signal of what matters.
## What belongs in the body
Include content the agent lacks:
- Project-specific conventions and domain procedures it cannot infer
- Non-obvious edge cases and environment-specific gotchas
- The specific tools or sequences to use (not the full range of options)
- One default per decision point with one escape hatch
Do not include:
- Concepts the agent already knows (what JSON is, how HTTP works, what a CSV is)
- Exhaustive option lists — pick a default; the agent doesn't benefit from choosing
- Steps the agent handles independently — over-specifying leads to unproductive paths
- Restatements of the description — it's already in context
## Calibrating control
**Be prescriptive** when operations are fragile, consistency matters, or a specific sequence must be followed:
```markdown
Run exactly:
\`\`\`bash
python scripts/migrate.py --verify --backup
\`\`\`
Do not modify the command or add additional flags.
```
**Give freedom** when multiple approaches are valid. Explaining *why* outperforms rigid directives — agents make better decisions when they understand the purpose.
## Defaults not menus
Never present a list of equivalent options — pick one and mention the alternative briefly:
```markdown
# Too many options
Use pypdf, pdfplumber, PyMuPDF, or pdf2image...
# Default with escape hatch
Use pdfplumber for text extraction. For scanned PDFs requiring OCR, use pdf2image instead.
```
## Gotchas sections
Highest value content — environment-specific facts that defy reasonable assumptions. Place near the top of the body so the agent reads them before encountering the situation.
```markdown
## Gotchas
- The `users` table uses soft deletes. Always include `WHERE deleted_at IS NULL`.
- User ID is `user_id` in the database, `uid` in auth, `accountId` in billing. Same value.
```
Each entry must be a specific, surprising fact — not a general tip or reminder.
## Progressive disclosure
Keep `SKILL.md` under 500 lines. When more content is needed, move it to `references/` and load conditionally:
```markdown
If the API returns a non-200 status, read `references/api-errors.md`.
```
"If X, read Y" is more useful than "see references/ for details." The agent loads on demand rather than up front.
## Auditing guidance
Flag as FAIL if:
- A sentence answers "no" to the core test (would agent get this wrong without it?) — it is padding
- Decision points present a menu of options with no default
- Instructions repeat content already in the description
- Prescriptive sequences are used where flexibility is fine, or vice versa
Flag as SUGGESTION if:
- A rationale is missing from an include/exclude rule (present but unexplained)
- Gotchas are correct but placed late in the body rather than near the top
- A conditional reference trigger is vague ("see references/") rather than specific ("If X, read Y")

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---
source_keys:
- agentskills-spec
- agentskills-optimizing-descriptions
---
# Description Quality Reference
Source: agentskills.io — optimizing-descriptions
## How triggering works
At startup, agents load only the `name` and `description` of each skill. When a user's task matches a description, the agent reads the full `SKILL.md` into context. **The description carries the entire triggering burden** — the body is never seen until after triggering.
Agents typically consult skills only for tasks requiring knowledge beyond their defaults. Specialized knowledge — unfamiliar APIs, domain-specific workflows, uncommon formats — is where description wording makes the difference.
## What a good description does
- **Imperative phrasing** — "Use when..." not "This skill does...". The agent is deciding whether to act.
- **User intent, not mechanics** — describe what the user is trying to achieve, not how the skill works internally.
- **Err toward being pushy** — explicitly name contexts where the skill applies, including cases where the user doesn't name the domain: "even if they don't mention X explicitly."
- **Specificity over vagueness** — "parses and validates OpenAPI specs" beats "helps with APIs."
- **Near-miss exclusions** — add "Do not use when..." only if a near-miss skill exists that could steal activations. Use strong near-misses (queries that share keywords but need something different), not weak ones ("write a fibonacci function").
- **Hard limit: 1024 characters** — descriptions grow during revision; check length before finalising.
## Before / after
```yaml
# Weak
description: Process CSV files.
# Strong
description: >
Analyze CSV and tabular data files — compute summary statistics,
add derived columns, generate charts, and clean messy data. Use when
the user has a CSV, TSV, or Excel file and wants to explore, transform,
or visualize the data, even if they don't explicitly mention "CSV" or
"analysis."
```
The strong version names capabilities precisely and broadens applicability beyond explicit keyword matches.
## Auditing guidance
Flag as FAIL if:
- Phrasing is descriptive ("This skill...") not imperative ("Use when...")
- Capabilities are vague ("helps with APIs") — require precise verbs and nouns
- No indirect trigger coverage when indirect cases clearly exist
- No near-miss exclusions when a sibling skill could plausibly steal activations
- Length exceeds 1024 characters
Flag as SUGGESTION if:
- Indirect trigger coverage exists but could be more specific
- Near-miss exclusions are present but target weak near-misses only

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# Sources
<!-- agentskills.io/llms.txt was used for initial source discovery and is not listed below; it contributed no skill file content directly. -->
## agentskills-home
- **URL:** https://agentskills.io/home.md
- **Research doc:** plugins/kyberforge/docs/research/docs/agentskillsio/sources.md
- **Description:** Agent Skills overview — what it is, why it exists, progressive disclosure model, ecosystem of 35+ implementing tools
- **Contributing files:** SKILL.md
- **Status:** `extracted`
## agentskills-spec
- **URL:** https://agentskills.io/specification.md
- **Research doc:** plugins/kyberforge/docs/research/docs/agentskillsio/sources.md
- **Description:** Complete SKILL.md format specification — frontmatter fields, constraints, body content, optional directories, progressive disclosure levels, file references, validation
- **Contributing files:** SKILL.md, references/body-discipline.md, references/description-quality.md
- **Status:** `extracted`
## agentskills-best-practices
- **URL:** https://agentskills.io/skill-creation/best-practices.md
- **Research doc:** plugins/kyberforge/docs/research/docs/agentskillsio/sources.md
- **Description:** Best practices for skill creators — starting from real expertise, spending context wisely, calibrating control, instruction patterns (gotchas, templates, checklists, validation loops)
- **Contributing files:** SKILL.md, references/body-discipline.md
- **Status:** `extracted`
## agentskills-optimizing-descriptions
- **URL:** https://agentskills.io/skill-creation/optimizing-descriptions.md
- **Research doc:** plugins/kyberforge/docs/research/docs/agentskillsio/sources.md
- **Description:** How to systematically test and improve skill descriptions for triggering accuracy — eval queries, trigger rate testing, train/validation splits, optimization loop
- **Contributing files:** SKILL.md, references/description-quality.md
- **Status:** `extracted`
## agentskills-evaluating-skills
- **URL:** https://agentskills.io/skill-creation/evaluating-skills.md
- **Research doc:** plugins/kyberforge/docs/research/docs/agentskillsio/sources.md
- **Description:** Eval-driven skill quality improvement — test case design, workspace structure, assertion writing, grading, benchmarking, human review, iteration loop
- **Contributing files:** (none — eval workflow not directly informing audit dimensions)
- **Status:** `extracted`
## agentskills-using-scripts
- **URL:** https://agentskills.io/skill-creation/using-scripts.md
- **Research doc:** plugins/kyberforge/docs/research/docs/agentskillsio/sources.md
- **Description:** Using scripts in skills — one-off commands, self-contained scripts with inline dependencies, designing scripts for agentic use (no interactive prompts, --help, structured output, idempotency)
- **Contributing files:** SKILL.md
- **Status:** `extracted`
## agentskills-quickstart
- **URL:** https://agentskills.io/skill-creation/quickstart.md
- **Research doc:** plugins/kyberforge/docs/research/docs/agentskillsio/sources.md
- **Description:** Step-by-step guide to creating a first skill (roll-dice example), how discovery/activation/execution work in practice
- **Contributing files:** (none — creation guide not directly informing audit criteria)
- **Status:** `extracted`