Summary

Phase-1 gap-closing for the fc-safari ai-sre agent path (see fc-safari PR #74 for the consumer side). Five additions to the flashduty CLI:

1. --output-format toon — a token-efficient output mode for the LLM agent.
2. mcp create — register an MCP server from the CLI.
3. monit-query diagnose|rows + monit-agent catalog|invoke — datasource-side and on-box diagnostics subcommands the AI-SRE skills drive.
4. change list --channel — comma-separated IDs (plural), matching alert list.
5. SDK pin to the dev integration branch (build hygiene).

1. TOON output mode (7da8c5b3)

The agent reads CLI output as tokens. JSON repeats every key on every row of a list; TOON (Token-Oriented Object Notation) emits the key set once and then bare rows, so a 50-incident list costs far fewer tokens. This mirrors how the Flashduty MCP server already exposes TOON.

• internal/output/format.go — new type Format int { FormatTable, FormatJSON, FormatTOON } with Structured() (true for JSON + TOON).
• internal/output/toon.go — TOONPrinter delegates to flashduty-sdk's Marshal(data, sdk.OutputFormatTOON) (the SDK already vendors toon-go; the CLI is thin wiring, not a new encoder).
• internal/cli/root.go — new persistent --output-format table|json|toon flag (inherited by every subcommand). --json is kept as an alias for --output-format json. resolveOutputFormat() makes --output-format win, falls back to --json, and errors on an unknown value (validated in PersistentPreRunE). marshalStructured() routes TOON through sdk.Marshal and keeps json.MarshalIndent for the JSON path.
• internal/cli/command.go — RunContext.JSON bool became Format output.Format + a Structured() method; all list/total/result printers switch on it.

JSON output is byte-for-byte unchanged — only TOON is new. Existing --json consumers and pipelines are unaffected.

Tests: internal/cli/output_format_test.go (resolution matrix incl. invalid→error), internal/output/toon_test.go (key-dedup vs row count), and the existing printer tests migrated to the Format API.

2. mcp create (f86006c3, polished in 5cca6fb2)

New command under a new mcp group. Registers an MCP server via flashduty-sdk.CreateMCPServer. 11 flags: --server-name --description --transport --command --args --env --url --headers --connect-timeout --call-timeout --team-id. --env and --headers accept repeatable KEY=VALUE parsed via a new shared parseKVSlice helper (8-case table test: nil / empty / single / multi / value-with-equals / empty-value / empty-key / missing-equals). Validation lives inside the runCommand closure for uniform error rendering; the test exercises the actual RunE path via the saveAndResetGlobals + mockClient fixture.

3. monit-query / monit-agent subcommands (c04b7414, a09fa2c7)

• flashduty monit-query diagnose|rows — pre-clustered RCA findings and raw passthrough against a backing datasource.
• flashduty monit-agent catalog|invoke — discover and batch-run on-box diagnostic tools on a target host / mysql instance.

These back the monit-query / monit-agent AI-SRE skills.

4. change list --channel plural (9b542528)

Migrated from singular Int64Var to comma-separated StringVar, routed through the SDK's ListChangesInput.ChannelIDs []int64. Mirrors alert list --channel (already plural) so both commands share filter semantics and match the MCP query_changes.channel_ids schema.

Test plan

• go test ./... -count=1 green (incl. TOON + resolution tests)
• make check clean (fmt + lint + test + build)
• Smoke: bin/flashduty incident list --help shows the inherited --output-format flag
• Smoke: bin/flashduty mcp create --help shows all 11 flags
• Smoke: bin/flashduty change list --channel 100,200 --since 1h --output-format toon against a dev account routes through channel_ids
• Cross-build for linux/amd64: GOOS=linux GOARCH=amd64 make build && file bin/flashduty reports ELF 64-bit ... x86-64 — needed by the fc-safari sandbox image bake