chore(skill-audit): backfill Research doc field in sources provenance

Add Research doc: pointer to all 7 agentskillsio entries so the new
validate-provenance.sh upstream checks can resolve the research source.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

plugins/kyberforge/skills/skill-audit/references/sources.md

@@ -5,6 +5,7 @@
 ## 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`
@@ -12,6 +13,7 @@
 ## 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`
@@ -19,6 +21,7 @@
 ## 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`
@@ -26,6 +29,7 @@
 ## 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`
@@ -33,6 +37,7 @@
 ## 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`
@@ -40,6 +45,7 @@
 ## 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`
@@ -47,6 +53,7 @@
 ## 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`