tags

Tags — the wiki’s controlled vocabulary

How pages are tagged so Dataview, the Base, and the graph can filter cleanly.
Two kinds of page, two tag families. Extend the set only with Toni’s approval (the wiki-docs rule).

Subsystem tags — per-file pages (pages/)

Each per-file page carries one or two of these — the subsystem the documented file belongs to:

tag	what it marks
controller	the control loops (base / EE / coordinated)
guidance	reference-trajectory generation, target selection, modes
simulation	injected truth-noise / belief covariance
utils	math, kinematics/dynamics, mesh, config, infra
analysis	running, logging, reduction, reporting
config	the YAML catalogs (parameters, metrics, scoreboard, assets)
measurement	measurement-contract pages (pairs with analysis / config)
uncertainty	risk / uncertainty material (reserved for the risk phase)

Topic tags — cross-file concept pages (topics/)

Each topic page carries the marker tag topic plus exactly one nested domain tag:

nested tag	domain	example topics
topic/numerics	conditioning, damping, near-singularity numerics	tikhonov_regularization
topic/control	the coordinated controller, derate, EE error laws	circumcentroidal_control, speed_gain_derate, ee_pose_error_antiwindup
topic/dynamics	the coupled map Γ, reduced EoM, COM vs base	coupled_dynamics, com_vs_base
topic/guidance	feedforward, orbit/path, target/coverage, modes	ee_feedforward, orbit_com_path, target_finding_coverage, guidance_modes

#topic selects the whole topic branch; #topic/control selects one domain. Nested tags collapse under
#topic in Obsidian’s tag pane — this is the wiki’s first use of hierarchical tags.

Rules

• Per-file pages carry subsystem tag(s) only; topic pages carry topic + exactly one topic/<domain>.
• A page is a topic iff its frontmatter has code_paths: (a list); a per-file page has the singular code_path:.
• A new tag or a new topic/<domain> → ask Toni first, then record it in the tables above.

Live tag census (Dataview)

Renders in Obsidian; an agent reading the raw file should use the tables above.

TABLE length(rows) AS "Pages", rows.file.link AS "Where"
WHERE (code_path OR code_paths) AND !contains(file.folder, "_")
FLATTEN file.tags AS tag
GROUP BY tag
SORT tag ASC