navi

An interactive cheatsheet tool for the command-line

notable Rust denisidoro/navi
70% pass rate
3/8 principles met

Spec Coverage

How many of the spec's requirements were verified for this tool. See /coverage for the full matrix.

LevelTotalVerifiedUnverified
MUST281711
SHOULD21138
MAY10100

human-tui Scored as a TUI: the non-interactive audits (P1) and the SIGPIPE audit (P6) have been suppressed — TUI apps intercept the TTY by design and install their own signal handlers.

This is an informational signal, not an authoritative verdict — see methodology. The per-audit evidence below is the ground truth.

Top Issues

All Audits

P1: Non-Interactive by Default

N/A by human-tuiNon-interactive by defaultsuppressed by audit_profile: human-tui
N/A by human-tuiNon-interactive gate flag advertised in --helpsuppressed by audit_profile: human-tui
PASSFlags advertise env-var bindings in --help
PASSSecret-bearing flags expose stdin or *-file companion
WARN`--help` advertises default values for flagsno default-value annotations found in --help. SHOULD-tier — agents reading help text need to see what value a flag falls back to when omitted (`[default: <value>]` per clap convention).
WARNRich-TUI affordance for TTY contextsno rich-TUI affordance detected (no `--tui`/`--interactive`/`--ui` flag, no spinner/progress/tui mention in --help). MAY-tier — rich TUI in TTY contexts is a nice-to-have, not required.

P2: Structured, Parseable Output

OPT-OUTStructured output supportno --output/--format flag detected in any subcommand — tool does not ship structured output.
N/AStructured-output CLI exposes its schema at runtimeantecedent `p2-json-output` is opt_out: no --output/--format flag detected in any subcommand — tool does not ship structured output.
WARN--json / --jsonl short aliases for --outputno --json or --jsonl short alias found. Agents and pipelines benefit from short forms alongside the canonical `--output` enum.
WARN`--raw` flag for pipe-safe unformatted outputno `--raw` flag advertised. MAY-tier — useful for pipelines that want to strip formatting before piping to other tools.
SKIP`--output` advertises additional formats beyond text/jsonno `--output` or `--format` flag advertised; vacuous skip for MAY-tier extra formats.
PASSBad invocation exits with structured usage-error code (2)
SKIPErrors emit JSON envelope with `error`/`kind`/`message` under `--output json`binary does not advertise `--output json` in --help; MUST applies only to CLIs that opt into the JSON contract.
SKIPJSON success and error envelopes share their non-payload key setbinary does not advertise `--output json` in --help; envelope-consistency only applies to CLIs that opt into the JSON contract.

P3: Progressive Help Discovery

PASSHelp flag produces useful output
PASSVersion flag works (`--version` plus short alias)
PASSVersion flag works (`--version` plus short alias)
WARN`examples` subcommand or `--examples` flag for curated usage patternsno `examples` subcommand or `--examples` flag found. MAY-tier — a curated usage block keeps agents from hunting through long help text.
WARNShort `-h` summary differs from `--help` long form`-h` and `--help` produce byte-identical output. SHOULD-tier — clap renders the short summary on `-h` and the full description on `--help` when `long_about` is set; collapsing them gives agents no concise list-level grep target.
FAILEach subcommand's `--help` ships at least one invocation examplesubcommands missing example invocations in their `--help`: fn, repo, widget, info. Examples teach agents the call shape faster than option tables; use clap's `after_help` or a dedicated `Examples:` block.
WARNHelp text pairs human and `--output json` example invocationsno paired text + `--output json` example found within 5 lines in top-level or any subcommand `--help`. Pairing keeps agents from reverse-engineering the JSON invocation from the text one.

P4: Fail-Fast, Actionable Errors

PASSRejects invalid arguments
PASSError messages include a hint or remediation phrase
SKIP`--output json` produces JSON-formatted errorsbinary does not advertise `--output json` in --help; SHOULD applies only to CLIs that opt into the JSON contract.

P5: Safe Retries & Mutation Boundaries

SKIPDestructive subcommands require `--force` or `--yes`no destructive subcommands detected; MUST applies conditionally to CLIs with destructive operations.
SKIPRead and write surfaces are both visible in subcommand listno recognizable read or write subcommand verbs; the read/write distinction is unobservable from the help surface alone.

P6: Composable, Predictable Command Structure

N/A by human-tuiHandles SIGPIPE gracefullysuppressed by audit_profile: human-tui
SKIPPager-using CLI ships --no-pager escape hatchno pager signal (less/more/$PAGER/--pager) in --help
PASSRespects NO_COLOR
WARNSubcommand verbs follow community-standard names2/5 subcommand(s) follow standard verb names. Non-standard: fn, repo, widget. MAY-tier — community-standard verbs (get/list/create/update/delete) help agents predict subcommand behavior across CLIs.
WARN`--color` flag for explicit color controlno `--color` flag advertised. MAY-tier — `auto|always|never` lets agents and pipelines override the TTY-based default.
SKIPInput-accepting commands read from stdin when no file is givenno input-accepting subcommand detected (process/parse/convert/transform/analyze/validate/format/lint/audit); vacuous skip for the conditional SHOULD.
WARNSubcommand naming follows a consistent verb/noun conventionsubcommand naming is inconsistent: 1 non-verb subcommand(s) (repo) mix verb and non-verb children at the second level, so an agent cannot predict where the action lives. SHOULD-tier: pick a consistent shape (all verb-first, all noun-verb hierarchy, or any combination where each non-verb group's children are uniformly verbs). The verb list is a heuristic; inspect `--help` to confirm.
WARNOperations are subcommands, not verb-shaped flagstop-level verb-shaped flag(s) found: --query. Operations belong under the `Commands:` block (`tool search "q"`), not on the flag namespace where they fight the `--help` filtering agents rely on.

P7: Bounded, High-Signal Responses

PASSQuiet mode available
WARN`--verbose` flag for diagnostic escalationno `--verbose` / `-v` flag advertised. SHOULD-tier — agents debugging failures need a way to escalate diagnostic detail.
SKIP`--limit` / `--max-results` flag for list operationsno list-style subcommand detected (list/ls/search/query/find/show/get); vacuous skip for the list-only SHOULD.
SKIPCursor-based pagination flags for list traversalno list-style subcommand detected; vacuous skip for the list-only MAY.
SKIP`--timeout` flag for long-running operationsno long-running subcommand detected (serve/daemon/watch/tail/monitor/follow/run/start/stream); vacuous skip for the conditional SHOULD.
WARNHelp text advertises TTY-aware verbosity behaviorno TTY-aware language found in `--help`. MAY-tier — automatic verbosity reduction when stdout is piped or redirected lets agents skip the explicit `--quiet` flag. Behavioral probes cannot simulate a real TTY without a pty crate, so this audit relies on documented intent.

P8: Discoverable Through Agent Skill Bundles

PASSSkill bundle has install path (`tool skill install [<host>]`)
PASS`skill install --all` for multi-runtime install
PASS`skill update` / `skill upgrade` for bundle refresh

Details

Version scored
2.24.0
Audit date
2026-06-01 17:36:46 UTC
Duration
113ms
Platform
linux/x86_64
Mode
command
Anc build
0.5.0
Install
brew install navi

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[![agent-native](https://anc.dev/badge/navi.svg)](https://anc.dev/score/navi)

Preview: agent-native badge for navi

Reproduce this scorecard for navi locally and inspect the failing audits:

anc audit --command navi --audit-profile human-tui --output json

Install anc first if you don't have it. Add --output json to get the same JSON shape committed under scorecards/.