feat(patterns): add three critical reading lens patterns

[OdinKral]

Summary

Adds three analytical reading lens patterns that apply classical critical theory traditions to any prose input. These fill a gap in Fabric's pattern library: Fabric has many extraction tools (extract_wisdom, summarize, analyze_paper) but nothing that applies a named intellectual framework as the analytical lens.

Patterns

lens_stoic — Philosophical lineage and tensions

• Traces intellectual ancestry (named and unnamed)
• Finds where the author departs from their own sources (where original thinking lives)
• Surfaces questions a rigorous philosopher would ask that the text doesn't
• Based on philosophical hermeneutics and history of ideas

lens_deconstructive — Binary oppositions and absences

• Maps the binary pairs the text organizes itself around and which term is privileged
• Identifies what is absent from the frame
• Finds self-undermining moments where the text contradicts its own logic
• Constructs at least one against-the-grain reading
• Based on Derrida and post-structuralist close reading

lens_rhetorical — Ethos / pathos / logos / kairos

• Analyzes how the text establishes authority, moves emotionally, constructs argument
• Maps audience construction: who is the implied reader?
• Catalogs specific techniques worth studying or borrowing
• Based on Aristotle's Rhetoric and discourse analysis

Usage

# Any prose input works: books, articles, essays, speeches, transcripts
cat chapter.txt | fabric -p lens_deconstructive
yt URL | fabric -p lens_rhetorical
pbpaste | fabric -p lens_stoic

Design principles

Each pattern:

• Opens with IDENTITY and PURPOSE naming the exact tradition it draws from
• Contains STEPS guiding the model to read before analyzing
• Produces sections that are framework-specific (not generic "analysis")
• Explicitly instructs: analyze how the text argues, not what it argues
• Calibrates depth to input length

These are the three most broadly applicable lenses. The framework is extensible — feminist, Marxist, postcolonial, and psychoanalytic lenses follow the same structure and could be added in follow-up PRs.

Test plan

• echo "short text" | fabric -p lens_deconstructive — verify it runs and produces the expected sections
• cat article.txt | fabric -p lens_rhetorical — verify ethos/pathos/logos sections are populated
• cat philosophy_excerpt.txt | fabric -p lens_stoic — verify lineage and tensions sections

🤖 Generated with Claude Code